XLSX to CSV Converter
Convert XLSX to CSV online, for free.
- From Device
- From Dropbox
- From Google Drive
- From OneDrive
- From Url
By proceeding, you confirm you own the rights to the files you upload and agree to our Terms of Use.
How to Convert XLSX to CSV?
- Click the “Choose Files” button to select your XLSX files.
- Click the “Convert to CSV” button to start the conversion.
- When the status change to “Done” click the “Download CSV” button
Easy to Use
Simply upload your XLSX files and click the convert button. You can also batch convert XLSX to CSV format.
Best Quality
We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).
Free & Secure
Our XLSX to CSV Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.
Excel Open XML Workbook (XLSX) is the default spreadsheet format of Microsoft Excel since the 2007 release. An XLSX file is a ZIP package of Office Open XML parts describing worksheets, formulas, charts, and formatting. Compared with the old XLS format it is substantially smaller, supports over a million rows per sheet, and cannot contain macros — a deliberate safety measure.
How to open an XLSX file?
Microsoft Excel opens XLSX natively, and Excel for the web opens it in a browser with a Microsoft account.
Google Sheets, LibreOffice Calc, and Apple Numbers all preserve formulas and most formatting. Very complex workbooks with pivot tables or advanced charts are safest in Excel itself. To share data without letting recipients change it, convert the workbook with our XLSX to PDF tool.
Developed by: Microsoft
Standard: ECMA-376 / ISO/IEC 29500
Initial Release: 2007
Comma-Separated Values (CSV) is a plain-text format for tabular data. Each line is a row, and commas separate the columns, with the first line usually holding the column headings. There is no formatting, no formulas, and no multiple sheets — just the data itself. That simplicity is the point: almost every spreadsheet program, database, and analytics tool in existence can import and export CSV, which makes it the default choice for moving data between systems.
How to open a CSV file?
Microsoft Excel, Google Sheets, and LibreOffice Calc all open CSV files directly and lay them out as a proper table.
Watch out for two common problems: Excel may convert long numbers or codes into dates, and files that use semicolons or tabs instead of commas need the right delimiter chosen during import. Use the Data → From Text/CSV import wizard rather than double-clicking to control this. To see the raw contents, open the file in any text editor, or convert it with our CSV to XLSX tool.
Developed by: No single vendor — formalised in RFC 4180
Initial Release: 1972
FreeConvert.com can convert your other files to CSV format:
FreeConvert.com can convert your XLSX files to these other formats:
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