XLM 4.0

Unknown

spreadsheet

XLM is an old format for Microsoft Excel spreadsheets with macros. It has been superseded by XLSM, a new XML-based format. The new macro format is based on Visual Basic for Applications (VBA), but the old format was different. The old format was used through Excel 4.0, but discontinued in 5.0, and is not supported in later versions.

Identify it

Extensions	`.xlm.xla`
MIME types	`application/vnd.ms-excel`
Signatures	`09040600` at byte 0 (BIFF 4 Macro)
PRONOM	`x-fmt/123`
Wikidata	`Q51800009`

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Open it

MediaRich Serverreads
Microsoft Excelreads · end-user license agreement
Microsoft Excel 2000reads
Microsoft Office Excel 2007reads

Convert it

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Sources

File Formats Wiki
PRONOM x-fmt/123
Wikidata Q51800009

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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