VSSM Converter
Convert files to and from VSSM online for free. Fast, secure, and high-quality file conversion with no sign-up or software required.
Maximum file size is 1GB
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What is a VSSM file?
The VSSM extension denotes a Microsoft Visio Macro-Enabled Stencil file, introduced with Visio 2013 to store reusable master shapes alongside embedded Visual Basic for Applications (VBA) code. Adhering to the Open Packaging Conventions (OPC), it functions as a ZIP container holding XML data structures for shape geometries and binary parts for compiled macros. Security policies often flag this format due to the potential execution of arbitrary code via the embedded VBA scripts.
How to open a VSSM file
Opening VSSM files requires Microsoft Visio Pro or Standard editions with macro security settings adjusted to permit VBA execution. While LibreOffice Draw can parse the vector shape data within the stencil using reverse-engineered libraries, it cannot execute or edit the proprietary VBA macros contained within the binary sub-parts of the archive.
VSSM Technical Info
- Full Name
- Visio Macro-Enabled Stencil
- Developed By
- Microsoft
- Initial Release
- 2013
- MIME Type
- application/vnd.ms-visio.stencil.macroEnabled.12+xml
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