REST APIs and Free Apps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Stencil File, Visio Stencil File, PPTX, Project, HTML, email and images using our Free Apps....convert between Visio Stencil File (VSSX) & Visio Stencil File (VSSX)...to VSTX VSSX to VSDM VSSX to VSSM VSSX to VSTM VSSX to PPT VSSX...