Turn XLSX spreadsheets into XLS. It is converted in your browser, so the file never leaves your device.
Drop XLSX files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop XLSX (Excel) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. There is nothing else to set. The work happens in this tab.
Save the XLS, or download everything as one ZIP if you converted several files.
The XLSX to XLS converter is part of this page and runs inside your browser. Your spreadsheets are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
XLSX is awkward for scripts, databases and import tools that expect plain text. XLS opens in copies of Excel older than 2007. XLSX is at home in spreadsheets with formulas, formatting and several sheets; XLS is the usual choice for compatibility with very old copies of Excel.
Every sheet is kept, under its own name. XLS holds at most 65,536 rows and 256 columns per sheet.
XLSX is Excel's format since Office 2007. A workbook can hold many sheets with formulas, formatting and charts. Programs and scripts usually prefer the same data as CSV or JSON.
Opens in Excel, Google Sheets, Numbers, LibreOffice Calc
XLSX converterXLS is the binary workbook format Excel used until 2007. It is limited to 65,536 rows per sheet and is treated as a legacy format today.
Opens in Excel and LibreOffice Calc
XLS converter| XLSXExcel workbook | XLSExcel 97–2003 workbook | |
|---|---|---|
| Stands for | Office Open XML Workbook | Excel 97–2003 Workbook |
| Type | Spreadsheet workbook | Spreadsheet workbook (binary) |
| Compression | ZIP container of XML | None |
| Introduced | 2007, by Microsoft | 1997, by Microsoft |
| Opens in | Excel, Google Sheets, Numbers, LibreOffice Calc | Excel and LibreOffice Calc |
| Best for | Spreadsheets with formulas, formatting and several sheets | Compatibility with very old copies of Excel |
| File extension | .xlsx | .xls |
No. The XLSX to XLS conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
The values are kept. Anything XLS has no way to express, such as formatting, formulas or nesting, is simplified or left out.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the XLSX file, press Convert and save the XLS. There is nothing to install.
Yes. Spreadsheet files up to 150 MB are accepted; a larger file is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.