.rdm file: how to open it on Windows

2 Windows apps register the .rdm extension. Install one of them to open the file with a double-click.

• 
  Remote Desktop Manager

  Remote Connections & Passwords. Everywhere!

  Proprietary 2026.3.12.0 289.5K ↓
• R
  Remote Desktop Manager Agent

  Run commands on multiple remote hosts at the same time!

  Proprietary 2025.2.28.0

Related guide: Change the default app for a file type in Windows