How to Convert Multiple BTN Files to DGN?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting BTN files in under two minutes.
2. Load your BTN files
Open reaConverter and add your BTN files. You can load individual files, entire folders, or even nested subfolders.
Drop your BTN files into the window or use File menu to browse and select folders.

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

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

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






