What are csv files excel

Содержание

  1. Understanding CSV Files in Excel
  2. Working with CSV Files
  3. Opening a CSV File
  4. Saving a CSV File
  5. Why CSV Files?
  6. Overcoming Data Complexity
  7. What if there are commas in the data?
  8. What if there is a new line in one of the rows?
  9. What if there is a quotation mark in my data?
  10. Different Separators in CSV Files
  11. Wrap Up
  12. CSV Format – How to Open a .csv File and Export it
  13. What is a CSV file?
  14. How to Create and Export a CSV file in Microsoft Excel
  15. How to Open a CSV File in Microsoft Excel
  16. How to Create and Export a CSV file in Google Sheets
  17. How to Open a CSV File in Google Sheets

Understanding CSV Files in Excel

CSV stands for Comma Separated Values where the data lives in a simple text file that is split up by commas. You’ll know you’re dealing with CSV files if the file extension is .csv like myData.csv (this also depends on if you have your OS settings so that you can see what the file type is) or if you open the file in a text editor and notice that the data is separated by a comma. If you use Excel long enough, working with CSV files is inevitable.

Here’s a simple example of what a CSV file looks like if you open it with a text editor (preferably Sublime Text, the best text editor ever).

When you open this file in Excel, the data gets transferred to the cells and it is split by the comma, which would look something like this:

Name Age
Kyle 25
Leslie 30

This is the basic gist of CSV files, but there’s more to it than this, which we’ll cover shortly.

Working with CSV Files

Working with CSV files is pretty straightforward. However, depending on your workflow, there might be some caveats that you may want to watch out for.

Opening a CSV File

If you have a CSV file, you can open it in Excel without much trouble. Just open Excel, click Open and find the CSV file to work with (or right-click on the CSV file and choose Open in Excel). After you open the file, you’ll notice that the data is just plain text put into different cells.

Saving a CSV File

If you want to save your current workbook into a CSV file, you have to use File -> Save As… and choose CSV file. More often than not, you will get this warning:

What Excel is trying to say here is that CSV Files don’t save any kind of formatting at all. Column widths, font styles, colors, etc. will not be saved. Just your plain old data will be saved in a comma-separated file.

Note that even after you save it, Excel will still show the formats that you had, so don’t be fooled by this and think that when you open the workbook again that your formats will still be there. They won’t be.

Even after you open up a CSV file in Excel, if you apply any kind of formatting at all, like adjust the column widths to see the data, Excel will still warn you that you can’t save the formats that you added. You will get a warning like this one:

So beware that your formats will never be saved in CSV Files.

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Why CSV Files?

CSV files are used as a way to communicate data between different applications. Say you had a database application and you wanted to export the data to a file. If you want to export it to an Excel file, then the database application would need to support exporting to XLS* files.

However, since the CSV file format is extremely simple and lightweight (much more so than XLS* files), it’s easier for different applications to support it. In its basic usage, you have a line of text, with each column of data split up by a comma. That’s it. And because of this simplicity, it’s easy for developers to create Export / Import functionality with CSV files to transfer data between applications instead more complicated file formats.

While the format is simple, it is not yet an internet standard, even though there is a proposal for one (by the way, it’s the shortest RFC I’ve ever seen, which is pretty nice). There are some problems that need to be overcome with CSV files and some applications handle this in different ways.

For example, what if your data has a comma in it? How do you separate that out? What about line breaks (like Alt+Enter)?

Overcoming Data Complexity

Let’s discuss how to overcome the following two issues with CSV files: commas in the data and handling new lines.

What if there are commas in the data?

Imagine you had this data:

Book Description
Star Wars A long time ago in a galaxy far, far away…
What color is your parachute?  In today’s challenging job-market, the time-tested advice of What Color Is Your Parachute? is needed more than ever.

If you took that data and put it into a CSV file, it would look like this:

However, if you imported that into Excel, it would look like this:

As you can see, even though we want the data in only columns A and B, there is some data that went into column C. This is because of the commas that exist in the data. So how do we get around this?

The commonly accepted solution is to wrap the data inside of quotation marks.

Here’s what the new data file looks like in a text editor, where the data items that have a comma are in quotes:

And when you open it in Excel:

There we go. Now the data is in columns A and B only, as we intended it to be.

What if there is a new line in one of the rows?

Let’s say that you have a new line in your data in an Excel file that looks something like this:

You can see that there is a new line in cell B2, but how would this look in a CSV file?

If you save the workbook as CSV and then open that file in a text editor, you can see what happens:

It might be hard to tell, but basically the quotation marks are used again in this example, but this time it’s to allow the newline character to be in the data and span across two rows.

What if there is a quotation mark in my data?

At this point you may be wondering “what happens if there is a quotation in my data?” This is a good question and the answer might be familiar to you if you ever had to put a quotation mark in your formula output.

If your data is not already surrounded by quotes, you can just add the quote. However, if you are using quotes to surround your data because it has a comma in it, then you have to “escape” the quotation mark by adding another quotation mark.

Here are some examples:

And here is the output in Excel:

Let’s break down each item:

These are just the headers. No big deal here.

The first row of the data. In the second column, the “quote” is within the data and Excel understands to interpret this literally when it processes the file. That’s why you will see the quote actually make it to the cell in B2.

Here, in the second column, you will see that the comma within the quotes actually split out the data into a third column. This is because the entire data field was not encapsulated within quotes, so Excel interpreted this as two different columns of data rather than one.

Here, we show how to properly do what we were trying to do in the second row of data. We encapsulated the second column in quotes and we escaped the quotes that we wanted in our data by adding an extra quote. Excel interpreted this as we wanted it to, by having only two columns of data and for it to have quotes within the data.

This last example shows how to add a quote in the second column that also has a comma within it. So we need to add the encapsulating quotes for the comma so Excel doesn’t split the data up, and we also need to add the escaping quote so that Excel doesn’t think that the data is finished before the word “quote.”

Different Separators in CSV Files

CSV files don’t always have to use a comma to separate the values in the data. Many applications allow you to use a set of commonly used separators or you can specify your own. However, you can’t have multiple separators in a single CSV file. Once you pick a separator, that’s the separator for the entire file.

While there are applications out there that allow you to specify a different character separator, Excel doesn’t have a native way to change the separator. You can, however, change the default list separator in your OS which would work, but I think we’ll have to save that for another post.

I’ve seen the following as typical characters to use for the separator in other applications:

For me, my favorite to use is the pipe | character. It’s easy to see and it’s almost never used in data (unless you’re saving PowerShell command snippets), making it a unique choice for saving to CSV.

If you are going to use another character other than the comma for separating values, there is an important line that you need to make sure is at the beginning of the file. For example, let’s say we had this data:

The separator is clearly the pipe | character. But if you opened this in Excel, it would look like this:

Notice how all of the data is in column A? This is because Excel is not finding a comma for separating values, which is its default separator. In order to tell Excel to use another separator, you have to add a special line at the beginning of the file:

By adding the line:

We are telling Excel to use the pipe | character as the separator (sep = separator).

Now when we open the file, it looks like this:

So if you ever run into an issue opening the CSV file, check the file in a text editor and see if that special line is in there.

Wrap Up

Hopefully this post helps give you a better idea of how CSV files work, why they are useful, and how you can use them for your own needs.

If you’d like to understand more or think I may have missed something, please let me know in the comments below!

Wow, you read the whole article! You know, people who make it this far are true learners. And clearly, you value learning. Would you like to learn more about Excel? Please consider supporting me by buying me a coffee (it takes a lot of coffee to write these articles!).

Written by Joseph who loves teaching about Excel.

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CSV Format – How to Open a .csv File and Export it

You might have heard of a CSV file but what does it mean?

In this article, we are going to learn what a CSV file is, and how to open and export them using Microsoft Excel and Google Sheets.

What is a CSV file?

CSV stands for Comma Separated Values. This is a file that contains data separated by commas and is usually used in spreadsheets and databases.

This is an example of a CSV file. We have two categories of Full Name and Major and the data is separated by commas.

Sometimes the separation of the data doesn’t have to be a comma. It could be a space or semicolon.

This separator is called a delimiter but the most commonly used is a comma.

CSV files are very useful because you can share information between different programs as long as they can open up the file.

For example, I can create a CSV file in Microsoft Excel and import that data into my contacts.

How to Create and Export a CSV file in Microsoft Excel

Microsoft Excel is a powerful tool that allows you to organize your data in the form of spreadsheets. The most common use cases for Excel would be to create budgets, sort and store data, and create charts or graphs.

Here are the steps for creating and exporting a CSV file in Excel.

  1. Click to open Microsoft Excel and go to File > New

2. Add data inside the spreadsheet

3. Go to File > Save

4. For the file format, choose .csv and click Save

How to Open a CSV File in Microsoft Excel

  1. Open Excel and go to File > Open.

2. Find the CVS file and click on Open

You should then see your data opened in a spreadsheet:

How to Create and Export a CSV file in Google Sheets

If you have a Google account, you can create and export CSV files using Google Sheets.

  1. Sign into your Google account

2. Under Google Apps, scroll down and click on Sheets

3. To create a new Google Sheet, click on Blank

4. Add data and name your spreadsheet

5. Click File > Download and choose the Comma Separated Values option

The file should then download to your machine where you can open it in any program that opens CSV files.

How to Open a CSV File in Google Sheets

  1. Open up a Blank Google Spreadsheet

2. Click on File > Import

You have four options to choose from.

  • Import file from Google Drive
  • Import files shared with you
  • Import recent Files
  • Import Files from your computer

3. To import a file from your computer, click on Upload

4. Select a file from your computer. You should then see a pop up window like this:

You can choose to leave the default option or change your separator type.

You can also choose to leave the default option or change the import location.

Once you are done, click on the Import data button.

You should now see the imported information appear in your Google Spreadsheet.

That is how to create, open, and export CSV files in Microsoft Excel and Google Sheets.

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CSV is an HTML-separated value file. It allows data to be saved in a tabular format. CSVs are similar to a spreadsheet of garden variety, but they have a. csv extension. CSV files can work with almost any spreadsheet program such as WPS office and WPS Spreadsheets.

They can be used for a variety of business purposes. These files allow companies to export large amounts of data to a concentrated database.

They also serve two primary business functions:

1. CSV files can be created by website developers because they are plain-text files. 

2. Because they are plain text, it is easier to import them into a spreadsheet or other storage database. 

3. To organize large quantities of data more efficiently.

One of the main goals in online commerce is to reach as many clients as possible. CSV files can be manipulated in many ways by ecommerce businesses owners because they are simple to organize. CSV files can be used to import and export important information such as order or customer data to and from your database.

How to create a csv file in Excel?

1.In your WPS spreadsheet select file.

2.Then Click on the save button.

3.Now open file type option and select CSV.

4.Then click on save.

What is the purpose of CSV file?

CSV (comma separated values) is a type of text file that allows data to be saved in a table-structured format .

CSV files can be used to import and export important information such as order or customer data to and from your database. An ecommerce company that purchases customer data via a social media site would be a good example.WPS Office is the most popular spreadsheet program for editing and opening CSV files. Many software programs allow you to download CSV files.Your online network will likely send consumer information to you in CSV format. This makes it easy and quick to exchange data. CSV files can be converted to other file types if they are correctly formatted. CSV files can also be converted to other file types easily if they are correctly formatted.

How to convert CSV file to Excel?

If a comma-delimited file (. extension) is opened directly, Excel will open it and remove any leading zeros from the data field. The leading zeros must not be lost if you want to upload the file as Excel. You can do this by changing the columns to text.

1. Open the WPS spreadsheet and select CSV file.

2. Now click on Save As button and select Excel.

3. The CSV file will converted.

The following steps will allow you to correctly open CSV files within Excel: First, open a blank Excel file. Next, click Get Data >From File > From Text/CSV. Choose the file to open, then click Import.

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It is easy to read the data presented in comma-separated values format by opening with Excel but scrambled data makes it hard to read. There are also a few problems associated, like unexpected data changes, by changing the format when the CSV file is opened directly. This article shows different ways to convert the CSV files into Excel by covering the following topics.

Excel has a handling feature for various data presented in different formats, including Comma Separated Values (CSV). In addition, it contains various useful functions that help import these files and easily convert them into Excel sheet tables. As a result, it is the most commonly used for transmitting and storing data related to contacts, statistical information, and calendar appointments.

This section facilitates examples of ways to convert the Comma Separated Values files into excel.

Table of contents
  • What Is Converting CSV Files In Excel?
    • Explanation
    • How To Open, Import & Convert CSV File Into Excel?
    • How to Use CSV Files in Excel?
    • Important Things To Note
    • Recommended Articles

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  • Converting CSV files in excel is an easy process. CSV stands for Comma separated Values. It indicates that the values will be separated by a comma.
  • We can have CSV files in Excel in two different ways. One is by importing the file, and the other one is by opening the file.
  • We should remember that the format of the CSV file inserted using the open method will be in .csv format and will not change into .xlsx or .xls formats.
  • For CSV files, excel allows a maximum of 1,048,576 rows and 16,384 columns.

Explanation

We have been using the data available in CSV format for several years. It indicates that data is separated by a comma using the common fields. Different ways are available to convert the CSV files into Excel. Those include:

  • Direct opening of CSV files with Excel.
  • Double-clicking and opening the file through the windows explorer option.
  • Importing CSV files into worksheets.

The main intention behind the conversion of CSV data into Excel is that supportability. Each comma-separated value is placed into each cell to separate easily with the conversion. The data presented in the CSV format limits the capabilities of a user in generating insights from the data in performing the data analysis.

How To Open, Import & Convert CSV File Into Excel?

Let us discuss some examples of the comma-separated values file in Excel to understand how to open, import and convert CSV files into Excel.

You can download this CSV Files into Excel Template here – CSV Files into Excel Template

Example #1 – Open CSV File In WorkSheet

Step 1: We must open the Excel worksheet and go to the File menu.

CSV Files into Excel Example 1

It shows the Open dialog box, as shown in the figure.

Example 1.1

Step 2: Then, we need to go to the CSV file’s directory. Select All Files on the right of the File name field.

CSV Files into Excel Example 1.2

Select the name of the CSV file. Then, click on Open to open the file with Excel.

Example 1.3

Step 3: It directly displays the data in the new workbook, as shown in the figure.

CSV Files into Excel Example 1.4

Data separated by a comma is placed into each cell in the Excel sheet.

Step 4: We need to apply the formatting to the title fields to differentiate the headers of columns.

Example 1.5

Step 5: Use the data for required purposes by applying the excel functions and formula.

Note: In this Excel, if we open a .txt file instead of a .csv file, Import Text Wizard is used to import the data into Excel.

Example #2 – Using Windows Explorer

Step 1: We must go to the CSV file’s directory. Right-click on the file and choose Open with.

Example 1.6

Step 2: Select the choose default program option on the right side of the Open with command, as shown in the figure. Then, choose Excel (desktop) among the recommended programs.

CSV Files into Excel Example 1.8

Step 3: As a result, now, the file is opened, and data is displayed, as shown in the figure.

Example 1.9

Example #3 – Import CSV File Through External Data

This method requires a lot of steps to import data compared to the other two techniques. However, it helps in importing the data into the current worksheet.

The steps to import CSV files through external data are as follows:

  1. First, we must open an Excel worksheet and place the cursor into a cell where we want to locate the data by importing from a .txt file or .csv file.

    CSV Files into Excel Example 1.13

  2. Then, we need to go to the Data tab on the ribbon and click From Text/CSV under the Get External Data group, as shown in the screenshot.

    CSV Files into Excel Example 1.10.0

  3. Browse to the location of the CSV or txt file to import the data. Then, select the .csv file and click on the Import button.

    CSV Files into Excel Example 1.12

  4. The Example CSV File wizard will open when clicking on Import.

    CSV Files into Excel Example 1.14

  5. Then we need to set the delimiter as Comma and click on ‘Load to’ to move to the next step.

    CSV Files into Excel Example 1.15

  6. It opens the ‘Import data’ dialog box. Here, we must choose the existing worksheet, place the cell address, and click OK.

    CSV Files into Excel Example 1.16

  7. Consequently, the data will be imported into the Excel sheet, as shown in the screenshot.

    CSV Files into Excel Example 1.17

We can use the data for various purposes in Excel.

How to Use CSV Files in Excel?

  • Storing data and performing the required calculations on the data.
  • Improving the security of the files as Excel files are not opened by any other software.
  • Possible to save the data in tabular format with the extension of .xls and .xlsx.
  • Display of data in rows and columns to represent the fields.
  • Using the required format for the data of different types.
  • Development of graphs and charts on the numerical data if presented.
  • Using the statistical analysis of the data.
  • Using the programming and macros and developing the data in developer mode.
  • Improving the flexibility in reading large data by using sorting and filtering.

Important Things To Note

  • Opening the CSV files is an easy way to convert the CSV data into Excel, and it does not change the file format to .xls or .xlsx
  • Default settings are provided for when the .csv file is opened with Excel.

Frequently Asked Questions

1. What is CSV file in excel?

CSV (Comma separated Values) are the values separated by commas in Excel. This feature is available in any version, from 365 to 2007 version.

2. What are the two ways to insert CSV files into Excel?

In Excel, we have 2 ways to insert CSV files. One is by importing and another, by opening. The shortcut to open a CSV file in Excel is Ctrl +O.

3. Which is better? Opening or importing a CSV file into Excel?

Though both methods are used commonly to insert CSV files into Excel, opening a file uses default data formatting settings. We cannot decide how to display the data.

If the data has other values (such as data formats), it is better to import the CSV file into Excel to control how to display the data.

Recommended Articles

This article is a guide to CSV files into Excel. Here, we discuss how to open, import, and convert CSV files into Excel, practical examples, and a downloadable Excel template. You may learn more about Excel from the following articles: –

  • Excel CSV UTF8
  • CSV vs. Excel
  • What is OneDrive Excel?
  • Power Query Excel

CSV Format – How to Open a .csv File and Export it

You might have heard of a CSV file but what does it mean?

In this article, we are going to learn what a CSV file is, and how to open and export them using Microsoft Excel and Google Sheets.

What is a CSV file?

CSV stands for Comma Separated Values. This is a file that contains data separated by commas and is usually used in spreadsheets and databases.

This is an example of a CSV file. We have two categories of Full Name and Major and the data is separated by commas.

Full Name,Major
Dave Wilson,Computer Science Major
Kelly Clarks,Music Major
James Anderson,Business Major

Sometimes the separation of the data doesn’t have to be a comma. It could be a space or semicolon.

This separator is called a delimiter but the most commonly used is a comma.

CSV files are very useful because you can share information between different programs as long as they can open up the file.

For example, I can create a CSV file in Microsoft Excel and import that data into my contacts.

Screen-Shot-2021-09-17-at-7.17.54-AMScreen-Shot-2021-09-17-at-7.19.34-AM

How to Create and Export a CSV file in Microsoft Excel

Microsoft Excel is a powerful tool that allows you to organize your data in the form of spreadsheets. The most common use cases for Excel would be to create budgets, sort and store data, and create charts or graphs.

Here are the steps for creating and exporting a CSV file in Excel.

  1. Click to open Microsoft Excel and go to File > New

Screen-Shot-2021-09-17-at-7.49.16-AM

2.  Add data inside the spreadsheet

Screen-Shot-2021-09-17-at-7.52.46-AM

3.  Go to File > Save

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4.  For the file format, choose .csv and click Save

Screen-Shot-2021-09-17-at-7.55.00-AM

How to Open a CSV File in Microsoft Excel

  1. Open Excel and go to File > Open…

Screen-Shot-2021-09-17-at-7.30.33-AM

2.  Find the CVS file and click on Open

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You should then see your data opened in a spreadsheet:

Screen-Shot-2021-09-17-at-7.33.30-AM

How to Create and Export a CSV file in Google Sheets

If you have a Google account, you can create and export CSV files using Google Sheets.

  1. Sign into your Google account

Screen-Shot-2021-09-17-at-7.57.54-AM

2.  Under Google Apps, scroll down and click on Sheets

Screen-Shot-2021-09-17-at-8.00.22-AM

3.   To create a new Google Sheet, click on Blank

Screen-Shot-2021-09-17-at-8.01.16-AM

4.  Add data and name your spreadsheet

Screen-Shot-2021-09-17-at-8.04.23-AM

5.  Click File > Download and choose the Comma Separated Values option

Screen-Shot-2021-09-17-at-8.08.31-AM

The file should then download to your machine where you can open it in any program that opens CSV files.

How to Open a CSV File in Google Sheets

  1. Open up a Blank Google Spreadsheet

Screen-Shot-2021-09-17-at-8.12.16-AM

2.  Click on File > Import

Screen-Shot-2021-09-17-at-8.12.53-AM

You have four options to choose from.

  • Import file from Google Drive
  • Import files shared with you
  • Import recent Files
  • Import Files from your computer

Screen-Shot-2021-09-17-at-8.14.51-AM

3.  To import a file from your computer, click on Upload

Screen-Shot-2021-09-17-at-8.15.38-AM

4.  Select a file from your computer. You should then see a pop up window like this:

Screen-Shot-2021-09-17-at-8.17.20-AM

You can choose to leave the default option or change your separator type.

Screen-Shot-2021-09-17-at-8.17.58-AM

You can also choose to leave the default option or change the import location.

Screen-Shot-2021-09-17-at-8.19.19-AM

Once you are done, click on the Import data button.

Screen-Shot-2021-09-17-at-8.20.00-AM

You should now see the imported information appear in your Google Spreadsheet.

Screen-Shot-2021-09-17-at-8.20.46-AM

That is how to create, open, and export CSV files in Microsoft Excel and Google Sheets.



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In computers, there are various file extensions and file types. Txt, pdf, xlsx, and other popular file extensions Have you ever come across an a.csv file? It is not widely used or popular among the general public. If you want to learn about CSV files, how to use them, when to use them, and why to use them, you’ve come to the right place. Let’s get started.

Table of Contents

  • What is CSV File?
  • How does the CSV file look?
    • Why use CSV?
  • When to Use CSV?
  • Advantages of CSV File 
  • Disadvantages of CSV File | Limitation of CSV File
    • How to Create CSV File using Excel?
    • How to Open CSV File in Excel?
    • How to Open CSV File in Google Sheet?
    • CSV File vs Text File
    • CSV File vs xlsx File

What is CSV File?

CSV file stands for Comma Separated Value file.CSV file is a type of plain text file that is a common format used for data exchange between different applications. It is used in programming and the data field.CSV file handles only tabular data. Data inside the CSV file will be number, string only, and does not contain formulas, etc.

How does the CSV file look?

Ans: CSV file looks like this:

In detail overview of content inside CSV file.

1. CSV file extension should be .csv.

2. The standard format of CSV data is defined by rows and columns.

3. Each row ends by newline then the next row begins.

4. Each column is separated by a comma. But other delimiters like colon, semicolon, space, equal sign, a tab is also used. But the last value is not followed by a comma.

Eg. «Diwas»,»Poudel»,45,»Jhapa, Nepal»

5. Each line in the CSV file is called a record and this acts as a row of data in a table.

6. Leading and trailing space of character between comma field separators are ignored and trimmed out.

Eg. Diwas , Poudel,45, «Jhapa, Nepal» resolves to «Diwas» and «Poudel«

7. The fundamental concept of separating fields from commas is simple, but when field data contain commas as well then the situation becomes complicated. Because there is no standard method for doing this. But general solutions look like this:

The solution for this is: Enclose the field in double-quotes.

Example from Point 4, ie. «Jhapa, Nepal» has a comma within a single field so quoted whole data in double quotes

8. If any field has double-quote characters then those characters must be surrounded by double-quotes.

For example, » Diwas «Raj»  can be written as «Diwas»»Raj»»»

CSV is data and database file extensions.Some other file of this types are : .dat, .db, .sql, .tar, .mdb etc.

The IETF document RFC 4180 first published in 2005 contains the standards for the data format of CSV files.RFC 4180 is a technical standard that formalizes the CSV file format and defines the MIME text type in CSV as well as the handling of text fields. 

Why use CSV?

1 It is used to import and export the data from one application to another.

2 It is a platform-independent file. You can create a CSV file in a Windows environment and can open the same file in Linux and Mac environments.
3 Large number of applications can open this file easily. Some applications that can open this file are excel, office, google sheets, LibreOffice, GenScriber, OpenOffice Calc, Fresh Books, Mobi systems OfficeSuite, etc.
4 It can be easily imported into the database.

5 Importing data into Excel takes up more memory, whereas importing CSV files takes significantly less memory, and reading those CSV files in excel will be much faster.

A database program that keeps data which cannot be read by other applications then, in this case, that proprietary format can export into CSV format and save it as a CSV file, and later it can be easily imported into another spreadsheet program and database application.

When to Use CSV?

Here is the list of when to use the CSV file.

  • When your data can take tabular structure.
  • When you want to transfer small to medium scale data.
  • Transfer data from one application to another as long as both applications support CSV and can open CSV files.
  • CSV files can also be used for backup data.

Advantages of CSV File 

Here are some advantages of CSV File as compared to other files.

  • Text in CSV Files is human-readable.
  • CSV Files can be easily edited manually.
  • Parsing CSV Files is simple to implement.
  • CSV Files can be processed by almost all the applications.
  • CSV Files are easy to generate.
  • CSV Files are faster to handle.
  • CSV Files are smaller in size
  • CSV Files can be easily imported into most databases.
  • If the data volume is very large basic data and the scheme is more or less flat then CSV could be one of the best for transferring data as compared to XML and JSON.
  • CSV supports streaming processing, you do not have to keep a whole file in memory

Disadvantages of CSV File | Limitation of CSV File

Here are some disadvantages of CSV Files.

  • CSV files are unable to handle complex data. Only good for basic data only.
  • No separation of numeric data from text data.
  • Some databases do not support CSV files for data import.
  • CSV files are not fully standardized. There is a lack of universal standard rules for handling CSV data. Ways of handling data are different. The problem for solving points 4. 6. 7. and 8. of «How does CSV files look» are also different from person to person
  • No standard way to represent controlled characters.
  • CSV file will not be properly imported if the required field(mandatory field) is blank and if data has been quoted.
  • CSV files will not be properly imported if data in the CSV file contains an unsupported character.
  • CSV file does not have standard ways of representing binary data.
  • Everything in CSV is a string. It has no type.
  • The CSV file format has very limited support for special characters.
  • There is no standard predetermined way to represent control characters in CSV files.
  • The most popular CSV libraries are badly optimized, which means that CSV parsing is slower.

How to Create CSV File using Excel?

The steps are as shown below:

1 Open file you want to save in CSV format in excel.

2 Goto File >Save As > Select the desired location you want to save.

3. Give the name to the CSV file and under «save as type» select «CSV MS-DOS» and then click on OK

save as csv

There are various formats to save CSV files but ms excel provides 4 formats. They are :

  • CSV Macintosh
  • CSV MS-DOS
  • CSV Comma Delimited
  • CSV UTF-8 (Comma Delimited)

How to Open CSV File in Excel?

Opening the CSV file is very simple. Let’s look at opening CSV files in various application

Opening CSV File in MS EXCEL

  1. First, make sure you have installed the MS Excel application
  2. Then right-click on the CSV file that you like to open. Then click on «OpenWith«.Then click on Excel.

How to Open CSV File in Google Sheet?

Because Google Sheet is a spreadsheet app that deals with data, it is sometimes necessary to open a CSV file in Google Sheet.

Here are the steps:

1 First of all Open Google Sheets 
2 Click on ‘File’
3 Next click on ‘Import’ 

import-open-google-sheet
4 Then Next Goto Upload Tab 
5 Then Click on ‘Select a file from your device

upload file

fig. Select Upload Tab and click on ‘select a file from your device’

6 Now select your desired CSV File to open in Google Sheet 
7 In the next screen click on the ‘Import data‘ button.

import-data

fig. click on ‘Import data’ button

8 Then click on the ‘Open Now’ link to open the CSV file.

open now to open csv file

fig. Click on the ‘Open now’ link to open the currently selected CSV File

CSV File vs Text File

  • Data in .txt files have no formatting for distinguishing each data.
  • Data in .csv files can be distinguished by a specific delimiter generally commas. But any other delimiter like a pipe, tab, or any single value character. Most of the applications can distinguish each data and treat them are tabular data.

CSV File vs xlsx File

CSV Files and XLSX Files are different. Differences between CSV File and XLSX File are as follows.

CSV File XLSX File
CSV stands for Comma Separated Values. It is a plain text file that contains a series of data separated by delimiters generally commas. XLSX stands for Excel Microsoft Office Open XML Format Spreadsheet file. It is Microsoft Excel Spreadsheet used for storing, organizing, and analyzing the data.
CSV files only contain delimited data and we cannot use formulas on them. In XLSX files, we can store data as well as can perform formatting, use formula, and macro, and generates Pivot Table, and VBA code on it.
CSV files can be opened and edited by all text editors. XLSX cannot be edited or opened by text editors.
CSV generally consumes less memory than xlsx files. XLSX consumes more memory while importing data.
Data of CSV will only be text or number. Data of XLSX may contain text, numbers, charts, and graphs
Less Complicated than XLSX files. More Complicated than CSV files
In CSV no operations on data can be performed In XLSX operations on data can be performed.

FAQ

Why is CSV bigger than Excel?

Ans: Because XLSX files are compressed files. If there are many repeated data in excel then XLSX files are generally smaller than CSV files.

Is the CSV file editable?

Ans: You can open and edit CSV files in notepad, word, excel, libre, and any other text editor.

Do CSV files have row limits?

Ans: Actually CSV files do not have any row limits. If you open CSV files in excel then it won’t hold more than 1 million data.

Are CSV files better than XLSX?

Ans: CSV files are less complicated and faster than Excel files. Also, CSV files consume less importing than Excel while importing data.

Does CSV remove all formatting?

Ans: CSV files only save text and value so they do not have any formatting like bold, italic, underline, fonts, etc.If you have formatted data in excel and while converting it into CSV files then all formatting gets removed.

 Can we use a formula in CSV data?

Ans: No. We cannot perform any formula and operations on data like we used to do in Excel.

Does CSV support multiple tabs or worksheets?

Ans: CSV doesn’t have multiple tabs or worksheets as Excel does. One CSV file contains only one tab.

How do you make a CSV file readable?

Ans: CSV files are already readable and can be read by a variety of applications such as notepad, excel, MS Word, Google Sheets, and so on. Let’s take a look at the reading difficulty by opening a csv file in these applications.

  • Notepad: Hard to read the data in a proper format
  • Google Sheet: Easy to read if you use text to column function
  • MSWord: Hard to read the data as data will not be transferred in column format.
  • MS Excel: Easy to read if use the text to column functions

Key Difference between CSV and Excel

  • CSV is a format for saving tabular information into a delimited text file with extension .csv, whereas Excel is a spreadsheet that keeps files into its own proprietary format viz xls or xlsx.
  • CSV is a plain text format with a series of values separated by commas, whereas Excel is a binary file that holds information about all the worksheets in a workbook.
  • CSV file can’t perform operations on data, while Excel can perform operations on the data.
  • Comparing CSV vs Xlsx, CSV files are faster and also consume less memory, whereas Excel consumes more memory while importing data.
  • Comparing CSV vs Excel, CSV files can be opened with any text editor in windows, while Excel files can’t be opened with text editors.

CSV vs Excel

CSV vs Excel

Excel and CSV both help store data in tabular format. Besides this commonality, there is a huge difference between Excel and CSV in their respective features and usages. Let’s discuss what is the difference between CSV and Xlsx in detail in this CSV and Excel difference article.

What is a CSV file?

A CSV file is a simple type of plain text file which uses a specific structure to arrange tabular data. The standard format of a CSV file is defined by rows and columns data where a newline terminates each row to begin the next row, and each column is separated by a comma within the row.

What is an Excel file?

Microsoft Excel is a spreadsheet software included in the Microsoft office suite. It is widely used to create tables and grids of numbers and formulas that specify calculations, inventory tracking, accounting, and more.

Here is the main difference between CSV and Excel:

Excel CSV
It is a binary file that holds information about all the worksheets in a workbook CSV stands for Comma Separated Values. It is a plain text format with a series of values separated by commas.
An Excel not only stores data but can also do operations on the data A CSV file is just a text file, it stores data but does not contain formatting, formulas, macros, etc. It is also known as flat files
Excel is a spreadsheet that saves files into its own proprietary format viz xls or xlsx CSV is a format for saving tabular information into a delimited text file with extension .csv
Files saved in excel cannot be opened or edited by text editors CSV files can be opened or edited by text editors like notepad
In data-warehouse, Excel is preferable for detailed standardized schema specification In data-warehouse, CSV follows a fairly flat, simple schema
Any programming language library to parse Excel data is generally larger, slower and complicated Any programming language to parse CSV data is trivial, generating it is extremely easy
With no clear distinction or separation between numeric values and text, Excel can mess up with your postal codes and credit card numbers with its auto formatting features CSV is safe and can clearly differentiate between the numeric values and text. CSV does not manipulate data and stores it as-is.
In Excel, you have to have a start tag and end tag for each column in each row In CSV, you write column headers only once
Excel consumes more memory while importing data Importing CSV files can be much faster, and it also consumes less memory
Reading large files user is much easier in Excel for the end user. Also, you can have additional functions like selecting individual cells for import, convert dates and time automatically, reading formulas and their results, filters, sorting, etc. Reading large files in CSV will not be as easier as Excel for the End User
Apart from text, data can also be stored in form of charts and graphs Each record is stored as one line of a text file, and every newline signifies a new database row. CSV can not store charts or graphs
Excel file can be opened with Microsoft Excel doc only CSV can be opened with any text editor in Windows like notepad, MS Excel, Microsoft Works 9, etc.
Excel can connect to external data sources to fetch data. You can use custom add-in in Excel to increase its functionality. Excel allows for Review of Data with detailed tracking and commenting feature. All this functionality is not possible in CSV
As a developer, it’s difficult to programmatically manipulate Excel files since the Excel is proprietary. This is especially true for languages other than .NET As a developer it’s easy to programmatically manipulate CSV since, after all, they are simple text files.

Similarities between CSV and Excel Files

CSV is the acronym for “comma separated values”. It is used to store tabular data where the column names and row values are separated using commas. The following image illustrates this

CSV file in Excel

CSV file in Excel

  • Both can be opened in spreadsheet programs
  • Both store data in tabular formats i.e. columns and rows
  • Both can be manipulated using functions and features found in Excel.

The following screenshot shows a CSV file opened in Excel

CSV file in Excel

CSV file in Excel

See all How-To Articles

In this tutorial, you will learn key differences between comma-separated values (.csv) and Excel (.xlsx) files.

csv vs excel

Key Differences Between CSV and XLSX Files

Excel and CSV files are used for storing data in tabular format. The main differences between these two formats are:

A comma-separated value (.csv) file … An Excel (.xlsx) file …
… is just a plain text file with values separated by commas. … can store formatting and perform operations on data.
… is a text file containing only one set of data. … is a binary file with multiple worksheets.
… is stored in .csv format and can be opened with text editors (such as Notepad). … has an .xls or .xlsx format and is opened by Excel.
… is faster to process and open. … takes more time and memory, since it can have a lot of calculations, links, and formatting.
… can only store text. … can contain symbols, links, charts, pictures, etc.
… is harder to read with larger sets of data. … can more easily display large data sets.

If you’re looking for information on CSV files, you’ve come to the right place. Whether you’re a novice and don’t know what CSV stands for or you’re a veteran sysadmin looking for a refresher course, this guide has you covered.  If, on the other hand, you were looking for you’re nearest CVS pharmacy, you may want to double-check the spelling of your Google search. Regardless of how you got here, join us as we take a deep dive into the tabular world of CSV files.

What Is a CSV File

A CSV file is a plain text file containing tabular data that is separated by a delimiter. The term CSV, which stands for comma-separated values, is derived from the file extension .CSV. Each row in a CSV file is a new record, and each record contains fields that are separated by a designated delimiter. CSV files are commonly used to import and export data in and out of applications.

CSV File Structure

If you’ve ever used a spreadsheet application, such as Microsoft Excel or Google Sheets, then you’ll be familiar with tabular data. Tabular data just means that data is structured into a table format, consisting of rows and columns. Like this:

csv1

Here we have an Excel file of famous Tony’s. Why? Because it was the first name that I thought of. Don’t judge me.

As you can see, we have four rows of data across three columns. Each row represents a record, and each column represents a field. Formatting data into a table like this makes the information easy to understand and digest for both people and computers. For instance, you can quickly glance at this data and see that Tony Hawk is a skateboarder while Tony Stark is Iron Man. Even without column headers, you can quickly understand how to data is associated, but more on that in a minute.

Now let’s compare this to a CSV file containing the same data.

csv2

As you’ll notice, the data is still structured into rows and columns; we just don’t have the tabled graphical interface anymore because were using a text editor rather than Excel to open the file. Instead, you’ll see that each row is separated by a line break, and each column is separated by a comma. This layout is the most common format for CSV files. However, CSV files aren’t fully standardized, and there are a few structuring components that are worth mentioning.

First, depending on the intended use of the CSV file, you may want to include a header line. A header line is essentially like labeling columns in a spreadsheet. When including a header line, it should always be added as the first line of a CSV file, and it should follow the same format as the rest of the CSV file. Here’s what my Tony CSV file looks like with a header line added.

csv3

Next, as the name suggests, the most common delimiter used in CSV files is the comma, but that doesn’t mean you have to use commas. In fact, just about any character can be used as a delimiter, but we’ll cover that more in the next section.

Another thing to watch out for is removing unnecessary blank spaces surrounding your delimiters. I ran into a couple of issues with my CSV files caused by having blank spaces next to my delimiters.

Lastly, ensure each line or record contains the same amount of delimiters. If one line contains more or fewer delimiters than the rest of the file, it will throw off the formatting and most likely mess things up if you are trying to import that data into an application.

CSV Delimiters

A delimiter is a character that’s been designated to mark the end of one unit of data and the beginning of the next unit of data. As we mentioned, while commas are the most common, almost any character can be designated as a delimiter in a CSV file. Some of the more commonly used characters include semicolons, tabs, and pipes.

One reason why users may decide to use a character other than a comma is if commas are present in the data being separated. Whenever an application that is parsing CSV data comes across the designated delimiter character, it will consider that character a delimiter, whether it was meant to be a delimiter character or not.  Here’s an example.

csv4

In this CSV file of famous quotes, the header line indicates that there are only two columns, name and quote. However, the quotes themselves contain commas which will cause the data to be parsed incorrectly.

Here’s what happens when we open this CSV file in Excel.

csv5

As you can see, Excel counted each comma as a delimiter and moved each value following a delimiter into its own column. Obviously, this isn’t what we want, but there are two ways to get around this. The first option is to use a less common character, or a character you know isn’t contained in the data, as the delimiter. The second option is to wrap the data in quotes. Let’s take a look at both options.

csv6

Here we’ve changed each delimiter character to a semicolon. However, if we just open this CSV in Excel, look what happens.

csv7

Even though we’ve changed the delimiter, Excel still counts each comma as a delimiter instead of the semicolons. By default, Excel always expects each comma to be a delimiter. To get around this behavior, we need to import the data instead of just opening the file with Excel. Here’s how.

  • With Excel open, click on the Data menu option.

  • In the Get & Transform Data ribbon section, click From Text/CSV.

    csv8

  • Navigate to the CSV file, select it, and click Import.

    csv9

  • The import wizard will open and attempt to automatically detect the delimiter. In my case, it automatically detected the semicolon as the delimiter. If it fails to detect the correct delimiter, you can manually select it.

    csv10

  • If you need to modify anything else, you can click the Transform Data button to make further changes, such as designating the first row as the header row. Once you’ve finished making your changes, click Load

After clicking Load, you’ll notice that all of the data has been imported correctly.

csv11

The other option to deal with delimiter characters contained in the data is to wrap the data in quotes. I’ve modified the CSV file again and replaced the semicolons with commas, and wrapped any data containing commas with quotes.

csv12

In this format, Excel will immediately recognize the formatting and properly import the data without using the import wizard.

csv13

While both options are viable, deciding which format is best for you often depends on the application that will be parsing the information. Does the application automatically detect or let you custom select the delimiter? How does the application handle values wrapped in quotes? Always thoroughly test these types of situations before dealing with production data.

How to Create a CSV File

Creating a CSV file is easy, and since CSV files are plain text files, many applications can do it. Here are a few different ways to create a CSV file.

Create a CSV File With Notepad.exe

  • Make sure you have «view file name extensions» turned on by opening up File Explorer, clicking View, then selecting File name extensions.

    csv14

  • In the search bar, type notepad and click on the Notepad application.

    csv15

  • Enter your CSV data.

    csv16

  • When you are finished, click File > Save As.

  • In the Save As window, change the Save as type: to All Files (*.*).

  • Enter a name for the file followed by .csv.

    csv17

  • Click Save.

Create a CSV File with Microsoft Excel

  • Open a new blank workbook or an existing file containing data in Excel.

  • Enter the data into the necessary fields.

  • When finished, click File > Save As, then click Browse.

    csv18

  • Navigate to the location you want to save the file.

  • In the Save as type: field, change the drop-down to CSV UTF-8 (Comma delimited) (*.csv).

    csv19

  • Enter a file name and click Save.

Create a CSV File with Google Sheets

  • With a new Google Sheet document open, enter your data into the fields.

    csv20

  • When you’ve finished inputting your data, click File > Download > Comma-separated values (.csv, current sheet).

    csv21

  • The file will be downloaded to your Downloads folder. If you didn’t title the sheet, the file will be called Untitled spreadsheet — Sheet1.csv, which you can then rename. Or, you could be smart, unlike me, and title it before downloading it.

Creating CSV files is pretty easy, though it generally depends on the application you’re using to create it.

How to Create a CSV File With PowerShell

Creating CSV files manually is one way to get things done. But, if manually inputting a bunch of data doesn’t sound like your cup of tea, then you may want to look into generating your CSV files with a shell or scripting language like PowerShell.

Often the data you want to compile into a CSV file already exists somewhere. Maybe you want to extract data from a platform like Active Directory or retrieve a list of services running on a computer. Using PowerShell to retrieve data and export it into a CSV file is extremely useful.

Here’s a PowerShell script that will scan multiple computers and export their name, total memory, disk size, and free disk space to a CSV file.

#Create an advanced function that requires and accepts computer names parameters.
[CmdletBinding()]
param(
[Parameter(Mandatory)]
[String[]]$Computers
)

#Designate a variable to store the results of our foreach loop.
$Results = @()

foreach ($Computer in $Computers){

#Retrieve memory amount, total disk space, and free disk space and format in GBs.
$Memory = (Get-CimInstance Win32_PhysicalMemory -ComputerName $Computer | Measure-Object -Property Capacity -Sum).sum /1gb
$DiskTotal = "{0:n0}"-f ((Get-CimInstance Win32_LogicalDisk -Filter drivetype=3 -ComputerName $Computer | Measure-Object -Property Size -Sum).sum /1gb)
$DiskFree = "{0:n0}"-f ((Get-CimInstance Win32_LogicalDisk -Filter drivetype=3 -ComputerName $Computer | Measure-Object -Property FreeSpace -Sum).sum /1gb)

#Create a PSCustomObject containing the retrieved data which will be stored in the $Results variable.
$Output = [PSCustomObject]@{
ComputerName = $Computer
"Memory (GB)" = $Memory
"DiskTotal (GB)" = $DiskTotal
"DiskFree (GB)"= $DiskFree
}
$Results += $Output
}

#Exports the data contained in the $Results variable to a CSV file.
$Results | Export-CSV -Path "C:CSVPC_Info.csv" -NoTypeInformation -Force

This script will ask you to provide the computer names you want to run the script against. This is great if you only have a handful of computers you need to enter. If you need to run this script against a lot of computers, you may want to point the script to an existing source, such as a CSV file containing computer names or an OU in Active Directory. Also, make sure you change the path to export your CSV where you want.

Here are the results of running this script against my computers.

csv22

And we can open this file in Excel to make it a little easier to read.

csv23

Returning data for three computers using PowerShell probably doesn’t save much time. However, if you target hundreds or thousands of computers with this script, you’ll see how valuable PowerShell can be.

Export Useful CSV Files Using PDQ Inventory

If you’re looking to get computer information into a CSV file, look no further than PDQ Inventory. PDQ Inventory is a system management tool that scans and collects hardware and software data from the computers in your network environment. That data is then used to organize and group your systems into collections, making it easy for you to identify which systems have what resources. The best part is once you sync PDQ Inventory with Active Directory, all this happens automagically. Don’t believe me? Try it out for yourself with a 14-day free trial.

Once your devices have been scanned, you can use the reports built into PDQ Inventory to export this data into CSV files. Here’s how it works.

  • With PDQ Inventory open, click on the Reports menu in the navigation tree.

    csv24

  • Double-click on any report. I’ll use the Out-Of-Date Software report for this example.

    csv25

  • With the report open, click Save Data to File.

    csv26

  • Navigate to where you want to save your file and click Save.

    csv27

  • With our file saved, let’s navigate to it and open it to see how it turned out.

    csv28

  • And here’s our final result.

    csv29

With just a few clicks, we generated a CSV file containing all of our computers with out-of-date software.

Wrapping Up

CSV files are great. Because they’re plain text files, they’re super versatile, their file size never really gets too large, they’re easy to make, and tons of modern applications can take advantage of them. In addition, if you’re a PowerShell user, there’s not much you can’t do with a CSV file and a good PowerShell script.

Brock Bingham candid headshot

Brock Bingham

Born in the ’80s and raised by his NES, Brock quickly fell in love with everything tech. With over 15 years of IT experience, Brock now enjoys the life of luxury as a renowned tech blogger and receiver of many Dundie Awards. In his free time, Brock enjoys adventuring with his wife, kids, and dogs, while dreaming of retirement.

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