How to Convert Multiple SIR Files to DGN?
1. Download and Install reaConverter
reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.
2. Load your SIR files
Open reaConverter and add your SIR files. You can load individual files, entire folders, or even nested subfolders.
Drop your SIR 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 SIR 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.







