.xlsm Excel spreadsheet
Documents & office
| MIME type | application/vnd.ms-excel.sheet.macroEnabled.12 |
|---|---|
| Description | Excel spreadsheet |
| Category | Documents & office |
| Based on | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
Frequently asked questions
What is a .xlsm file?
A .xlsm file is a “Excel spreadsheet” (MIME type application/vnd.ms-excel.sheet.macroEnabled.12).
How do I open a .xlsm file?
With an office suite: LibreOffice (free, Windows/macOS/Linux) opens most document formats, as do Microsoft Office or the vendor’s own app.
How can you tell a genuine .xlsm file?
No fixed signature at the start of the file is registered for this format; it is recognised mainly by its extension. On Linux and macOS, file --mime-type example.xlsm shows the guessed type.
Which format is .xlsm based on?
Technically a .xlsm file is a subtype of “Excel 2007 spreadsheet” (application/vnd.openxmlformats-officedocument.spreadsheetml.sheet), so programs for that base format can often read it too.
Which MIME type belongs to .xlsm?
The MIME type is application/vnd.ms-excel.sheet.macroEnabled.12. In the Apache web server: AddType application/vnd.ms-excel.sheet.macroEnabled.12 .xlsm; in nginx: types { application/vnd.ms-excel.sheet.macroEnabled.12 xlsm; }.