This solution allows to replace text in Visio files.
To use it run the solution on Visual Studio.
This operation will open the Visio software.
After that a new Group will be available on the ADD-INS ribbon.
Having this shape with the text "Text to Change 1". The shape also has a property with values "Text to Change 1"
Then using the Replace button we can replace "Text to Change 1" by "Text to Change 2"
The replace operation will show how mane texts were replaced.