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XLSX to XLSM converter, without the upload.

Turn XLSX spreadsheets into XLSM. 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

Ready · other file types work too0 bytes uploaded, ever

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How to convert XLSX to XLSM

  1. Add your XLSX spreadsheets

    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.

  2. XLSM is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the XLSM, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The XLSX to XLSM converter is part of this page and runs inside your browser. Your spreadsheets are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

XLSX to XLSM: what to expect

XLSX is awkward for scripts, databases and import tools that expect plain text. XLSM keeps a workbook's macros. XLSX is at home in spreadsheets with formulas, formatting and several sheets; XLSM is the usual choice for workbooks that carry VBA macros.

Every sheet is kept, under its own name. XLSM holds at most 1,048,576 rows and 16,384 columns per sheet. The workbook is saved with the .xlsm extension but contains no macros; nothing is added to it.

XLSX vs XLSM

XLSX

Excel workbook

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 converter
XLSM

Excel macro-enabled workbook

XLSM is XLSX with a VBA macro project attached. Excel refuses to save macros inside a plain XLSX, so a workbook with macros gets this extension. The cells are stored exactly as in XLSX; the macros are a separate binary part of the package.

Opens in Excel, LibreOffice, Google Sheets (macros are ignored), Numbers

XLSM converter
XLSX compared with XLSM
XLSXExcel workbookXLSMExcel macro-enabled workbook
Stands forOffice Open XML WorkbookExcel Macro-Enabled Workbook
TypeSpreadsheet workbookSpreadsheet
CompressionZIP container of XMLZIP container of XML
Introduced2007, by Microsoft2007, by Microsoft
Opens inExcel, Google Sheets, Numbers, LibreOffice CalcExcel, LibreOffice, Google Sheets (macros are ignored), Numbers
Best forSpreadsheets with formulas, formatting and several sheetsWorkbooks that carry VBA macros
File extension.xlsx.xlsm

Questions

Are my spreadsheets uploaded anywhere?

No. The XLSX to XLSM conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting XLSX to XLSM?

The values are kept. Anything XLSM has no way to express, such as formatting, formulas or nesting, is simplified or left out.

Can I convert several XLSX files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert XLSX to XLSM on Windows, Mac, iPhone or Android?

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 XLSM. There is nothing to install.

Is there a file size limit?

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.

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