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Free converter

Convert to XLSX

Anyfile turns spreadsheets files into an Excel workbook for free, right in your browser: nothing is uploaded. Drop a file and it converts at once.

Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.

When to use XLSX

Sharing spreadsheets with anyone who uses Excel, Numbers, Google Sheets or LibreOffice.

Convert to XLSX from

.xlsx

Excel workbook

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 files

Questions

What can I convert to XLSX?

XLSM, XLTX, XLTM, XLS, XLSB, ODS, OTS, FODS, CSV and TSV files. Drop one on this page and it converts to XLSX straight away.

Are my files uploaded?

No. Anyfile converts them in your browser, on your device; nothing is sent to a server.

Can I convert several files to XLSX at once?

Yes. Drop them together, and you get one ZIP with every XLSX inside.