REST APIs and Free Apps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Stencil File, Visio Drawing Template, PPTX, Project, HTML, email and images using our Free Apps....convert between Visio Stencil File (VSSX) & Visio Drawing Template...VSSX to TXT VSSX to MD VSSX to TIFF VSSX to TIF VSSX to JPG VSSX...