.lsm file: how to open it on Windows

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

• 
  XnView MP

  Professional Image Viewer & Photo Management

  Proprietary 1.12.2.0 436.9K ↓
• 
  Icaros

  A collection of lightweight, high quality, Windows Shell Extensions.

  Free 3.3.6.000 ★ 1.9K
• X
  XnView

  Best Photo Viewer, Image Resizer & Batch Converter for Windows.

  Proprietary 2.52.7

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