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