.CSV File Info & Viewer

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.CSV files online

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Comma-separated data files & more
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Extension
.CSV
Category
Data
Primary Use
Tabular Data Exchange
Primary Software

What is a CSV file?

A .CSV file is a Comma-Separated Values file. It is a plain text file that stores tabular data. Each line in the file is one data record. Each record consists of one or more fields, separated by commas. Many databases and applications use .CSV files to import and export data.

These files are the standard format for generic data interchange. Common examples include exporting contacts from Google Contacts, backing up passwords from Google Chrome, or archiving account data via Google Takeout.

How to open CSV files?

You can open .CSV files with spreadsheet software like Microsoft Excel, Google Sheets, or LibreOffice Calc. Because they are plain text, you can also view them in simple text editors like Notepad++ or Apple TextEdit.

Developers often parse .CSV files using programming libraries, such as the `csv` module in Python, or command-line tools like `awk` and `cat`.

File Analysis and Preview

Because a .CSV extension can have multiple possible delimiter settings or encodings, viewer.online/csv analyzes .CSV files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. If you need to share this data with styling or multiple sheets, we recommend file conversion to sensible target formats like .XLSX, .ODS, or .JSON on convert.guru.

Summary

Because .CSV files use the known UTF-8 format, viewer.online/csv can safely open and display them online, eliminating compatibility problems.

Frequently Asked Questions

Why does my CSV file look messy in Excel?

Microsoft Excel might use the wrong delimiter or encoding. You can fix this by using the Data import wizard to manually select the correct comma or semicolon separator for your .CSV file.

Can a CSV file contain multiple sheets?

No. A .CSV file only stores plain text data in a single table. To use multiple sheets, you must save your file as an .XLSX or .ODS spreadsheet.

How do I fix character encoding issues?

Re-save the file with the correct encoding. If special characters look broken, the file likely uses UTF-8 but your software expects something else. Open the file in a text editor like Notepad++ and change the encoding.

Is a CSV file safe to open?

Yes. A .CSV file is plain text and cannot run malicious code. However, you should never click on suspicious web links stored as text inside the file.

Can I convert a CSV file to Excel?

Yes. You can use convert.guru to easily convert a raw .CSV file into a formatted .XLSX file.

Why did I lose my text formatting?

The format does not support it. .CSV files do not save bold text, colors, column widths, or formulas. They only store raw text and numbers.

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