Command line to import/export Visio VBA code

The import/export VBA extension supports not only the UI (button-click), but also command line interface! It was not initially documented (now it is), but the tool includes command-line utility as well, so that one can use it with powershell script or a batch file (for batch processing of files), or in any other automated way. For this functionality MSI (full) version is required:  Below are some examples of what can be done using command line.