Convert VSD VSDX to VTX Visio Diagram File in C# .NET

readme.md

You can find more details at: Convert VSD or VSDX File to VTX in C#

VSD to VTX.cs

// Load the input Visio diagram
Diagram diagram = new Diagram("Input.vsd");

// Create an object of the DiagramSaveOptions class
DiagramSaveOptions options = new DiagramSaveOptions();
options.SaveFormat = SaveFileFormat.Vtx;

// Save the output VTX file
diagram.Save("Output.vtx", options);

VSDX to VTX.cs

// Load the input Visio diagram
Diagram diagram = new Diagram("Input.vsdx");

// Create an object of the DiagramSaveOptions class
DiagramSaveOptions options = new DiagramSaveOptions();
options.SaveFormat = SaveFileFormat.Vtx;

// Save the output VTX file
diagram.Save("Output.vtx", options);