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Anyfile converts a CSV file to an Excel workbook for free, right in your browser: the file is never uploaded.
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| Values and formulas | Kept, with number formats and every sheet |
|---|---|
| Pictures and charts | Kept |
When to use XLSX: Sharing spreadsheets with anyone who uses Excel, Numbers, Google Sheets or LibreOffice.
.csv
Rows of plain text where each value is separated by a comma, as described in RFC 4180. It stores data only: no formulas, formatting or extra sheets.
Moving tables between spreadsheets, databases and programs.
Opens in Excel, Numbers, Google Sheets, LibreOffice, any text editor
About CSV files.xlsx
The standard Excel file since Office 2007: a ZIP of XML parts holding sheets, cell values, formulas, styles and charts. It is part of the Office Open XML standard (ECMA-376).
Sharing spreadsheets with anyone who uses Excel, Numbers, Google Sheets or LibreOffice.
Opens in Excel, Numbers, Google Sheets, LibreOffice Calc
About XLSX filesGoing the other way? Convert XLSX to CSV
Everything that converts to XLSX
Need to change it first? Open the spreadsheet editor
Drop your CSV file on this page, or choose it. Anyfile converts it on your device in a moment and the XLSX downloads straight away. To change it first, open it in the spreadsheet editor.
No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.
Yes. Drop them together and you get one ZIP with every XLSX inside.