: If the file is from a lab or vacuum system, it is likely a mass spectrometry file. If it's from a medical research project, it's likely BrainVoyager.
The .rga file is corrupted or from a different version of the app. Fix: This usually cannot be fixed. Delete the .rga and reinstall the original program manually, then use a different uninstaller. .rga file
Based on limited documentation:
file extension is most commonly associated with AMD Radeon GPU Analyzer (RGA) : If the file is from a lab