REST APIs and Free Apps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Stencil File, Word Open XML Macro-Enabled Document Template, PPTX, Project, HTML, email and images using our Free Apps....allows you to convert between Visio Stencil File (VSS) & Word Open...VSS to PSB VSS to VSDX VSS to VSX VSS to VTX VSS to VDX VSS to...