How to Convert Multiple CSM Files to DGN?
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 CSM files
Open reaConverter and add your CSM files. You can load individual files, entire folders, or even nested subfolders.
Drop your CSM 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 CSM 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.








