.tmg file: how to open it on Windows

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

• 
  My Family Tree

  Build your family tree the easy way with My Family Tree.

  Proprietary 16.2.0.0 25.5K ↓
• G
  GNU Backgammon

  Backgammon simulator with support for player-versus-CPU and for match analysis. Supports both GUI and CMD interfaces.

  Open source 1.08.003

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