Hey there, the application requires the path to the ConvertData_OriginalSins.exe or ConvertData_Entrenchment.exe files (I think those were the names), it should have auto-detected the location of them if you had SoaSE installed when you first ran this, but if not you can go into the Settings and manually locate them by pushing the "..." button beside the respective name.

Assuming a default install location, the original convertdata would be here for example: C:\Program Files\Stardock Games\Sins of a Solar Empire\ConvertData_OriginalSins.exe

Let me know if you have any issues!

P.S. If you have any issues or questions that crop up later, your best bet will be to ask in the thread I have with the tool release ( https://forums.sinsofasolarempire.com/322559 ), I check that daily but rarely view the entire forum