REST APIs and Free Apps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Stencil File, Enhanced Windows Metafile, PPTX, Project, HTML, email and images using our Free Apps....allows you to convert between Visio Stencil File (VSS) & Enhanced...VSS to VSDX VSS to VSX VSS to VTX VSS to VDX VSS to VSSX VSS to...