Code
What is a .vssm file?
A .vssm file is a Microsoft Visio Macro-Enabled Stencil (version 2013). This is a code, script or executable format.
How to open a .vssm file
- VS Code opens and highlights nearly every text-based code format.
- Never run a script you didn't write or trust.
The registry records this extension against Microsoft Visio Macro-Enabled Stencil, so software from that family is the most likely match.
How to convert a .vssm file
- Text-based code needs no conversion — just save with a different extension if a tool insists.
MIME type
When a .vssm file travels over the web, servers label it with this MIME type:
application/vnd.ms-visio.stencil.macroEnabled.main+xmlThe technical record
For archivists, developers and the merely curious: these are the PRONOM registry entries for .vssm.
| Format name | Version | MIME type | PUID |
|---|---|---|---|
| Microsoft Visio Macro-Enabled Stencil | 2013 | application/vnd.ms-visio.stencil.macroEnabled.main+xml | fmt/928 |