How to Convert Multiple BUM Files to FITS?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting BUM files in under two minutes.
2. Load your BUM files
Launch reaConverter and load the BUM files you want to convert. Add a few files or thousands, batch processing handles them all.
Drag-and-drop BUMs directly into reaConverter or use the folder browser to load entire directories.

3. Select FITS as output format
Set FITS as output format and select where to save your converted files. Customize quality settings if needed.

4. Start BUM to FITS conversion
Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.

Your converted FITS files will appear in the destination folder as soon as processing completes.






