How to Convert Multiple WB1 Files to JXL?
1. Download and Install reaConverter
First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed.
2. Load your WB1 files
Open reaConverter and add your WB1 files. You can load individual files, entire folders, or even nested subfolders.
Drop your WB1 files into the window or use File menu to browse and select folders.

3. Select JXL as output format
Choose JXL as the target format. Pick a destination folder or let reaConverter save files alongside the originals.

4. Start WB1 to JXL conversion
Hit Convert and let reaConverter do the work. The progress window shows status for each file in real time.

After conversion, find your JXL files in the output folder. Click 'Show converted files' to open it directly.







