.VSL File Extension

2 file types use the .vsl file extension.

Visio Add-on

Developer Microsoft
3.3  |  4 Votes

What is a VSL file?

Addon, or library, file used by Microsoft Visio, a business diagramming application; saves software components that extend the functionality of the program; typically created and distributed by third-party developers.

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NOTE: VSL files are actually .DLL files that are specifically configured to run with Visio.

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Programs that open or reference VSL files


Velocity Template File

Developer Apache
2.3  |  4 Votes

Developer file used by Velocity, a Java template engine used to auto-generate text and source code; contains text as well as statements written in the Velocity Template Language (VTL); often used for generating Web page source code.

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Velocity enables data from a Java program to be merged with a Velocity template to produce an output text file. For example, an HTML file that is a Velocity template may have an unpopulated table that is populated with data when run with a Java program using Velocity.

NOTE: Velocity templates more commonly use the .VM extension.

Programs that open or reference VSL files


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