XLSM to XLS Converter
Convert your Excel XLSM workbook into a compatible XLS spreadsheet for Microsoft Excel and office software. Process securely online and download free.
Drop your XLSM files here
Up to 50MB per file.
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your XLSM files
Drag and drop or select XLSM files from your device. You can upload multiple files at once.
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Configure Output
Start the conversion. Crest Convert will prepare the XLS file using the appropriate format engine.
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Download XLS files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert XLSM to XLS?
XLSM is a macro-enabled Microsoft Excel workbook containing worksheets, formulas, formatted cells, and spreadsheet data. Converting it to XLS creates the legacy Microsoft Excel workbook format used by older spreadsheet systems, ready for workflows that use the destination format.
XLS opens in Microsoft Excel and office suites that support legacy workbooks.
Frequently Asked Questions
How do I convert XLSM to XLS?
Add your XLSM Excel workbook, start the conversion, and download an editable XLS spreadsheet ready for Microsoft Excel and compatible office applications.
What is an XLSM workbook?
XLSM is a macro-enabled Microsoft Excel workbook format used for worksheets, formulas, formatted cells, charts, and spreadsheet data.
What does converting XLSM to XLS do?
The converter reads your XLSM workbook and creates an editable XLS spreadsheet ready for Microsoft Excel and compatible office applications.
Can I edit the converted XLS spreadsheet?
Yes. The converter creates a genuine XLS spreadsheet with supported worksheet content, cell values, and structure ready for compatible apps.
Can I convert several XLSM workbooks?
Yes. Add multiple XLSM files and download a separate XLS result for each spreadsheet.
Is XLSM to XLS conversion secure?
Yes. Spreadsheets are transferred over an encrypted connection, processed securely, and automatically removed after conversion. No account is required.