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Gsa API is a dynamic linking library implemented in C++/CLI (Managed C++), which internally uses GSA C++ code to handle the data and commands. The dynamic linking library can be used in .NET applications and Python by using the Python.NET package.

The API cannot be used in VBA scripts for Excel. But It shall be used to handle the data from Excel by using Microsoft.Office.Interop.Excel in a .NET application.