Merge VSTM

How to merge VSTM files in C#

GroupDocs.Merger allows developers to merge VSTM files when it’s needed to organize multiple VSTM files into single document or send fewer attachments etc. And you can do this without¬†any third-party software or manual work involved. With GroupDocs.Merger it is possible to combine VSTM documents of any size and structure - all text, images, tables, graphs, forms and other content will be preserved.

The following example demonstrates how to merge VSTM files with several lines of C# code:

  • Create an instance of Merger class and pass source VSTM file path as a constructor parameter. You may specify absolute or relative file path as per your requirements.
  • Add another VSTM file to merge with Join method. Repeat this step for other VSTM documents you want to merge.
  • Call Merger class Save method and specify the filename for the merged VSTM file as parameter.
// Load the source VSTM file
using (Merger merger = new Merger(@"c:\sample1.vstm"))
{
    // Add another VSTM file to merge
    merger.Join(@"c:\sample2.vstm");
    // Merge VSTM files ans save result
    merger.Save(@"c:\merged.vstm");
}

About VSTM File Format

Files with VSTM extension are template files created with Microsoft Visio that support macros. Unlike VSDX files, files created from VSTM templates can run macros that are developed in Visual Basic for Applications (VBA) code. A template file can be created in order to provide basic settings of the document that can be utilized to generate further documents with these settings.

Code Examples

Please find more use-cases and complete C# sources of our backend and frontend examples and try them for free!

Merge VSTM Live Demo

GroupDocs.Merger for .NET provides an online VSTM Merger App, which allows you to try it for free and check its quality and accuracy.

“Merge VSTM”