With Filestar you get 27 different skills for working productively with Visio Drawing Template (.vstx) files.
About .Vstx
Name
Visio Drawing Template
Extension
.vstx
Format
Binary
Category
Vector Image
Developer
Microsoft
Description
Files with .vstx extensions are drawing template files created with Microsoft Visio 2013 and above. These VSTX files provide starting point for creating Visio drawings, saved as .VSDX files, with default layout and settings.