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)...VSSX to ODP VSSX to OTP VSSX to POTX VSSX to POT VSSX to POTM VSSX...