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Anyfile converts an Excel 97–2003 workbook to an Excel workbook for free, right in your browser: the file is never uploaded.
Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.
| 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.
.xls
The older binary Excel format, the default from Excel 97 until Excel 2007 moved to XML. Each sheet holds at most 65,536 rows and 256 columns.
Old spreadsheets from archives, legacy systems and software that still exports this format.
Opens in Excel, LibreOffice Calc, Numbers, Google Sheets
About XLS 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 filesEverything that converts to XLSX
Need to change it first? Open the spreadsheet editor
Drop your XLS 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.