Use the "Export File" option on the "File" menu bar to export all of the other macro modules from the Excel workbook that you want to convert to .NET. Close the VBA editor window first, and then ...

Compile the C# program file along with the EPPlus DLL. Then call the hot-manchego exe file with two arguments: the first is a blank xlsm file and the second is a txt file with your macro in vba format ...