.THM File Extension

There are 4 file types use the .THM file extension:

  1. Sony Ericsson Theme File
  2. Video Thumbnail File
  3. Thumbnail Image File
  4. Thermwood Macro File

1. Sony Ericsson Theme File

Sony Ericsson Theme File
  • Developer Sony Ericsson
  • Popularity
    3.8 (67 votes)
  • Category Misc Files
  • Format N/A

A THM file is a theme file used by Sony Ericsson mobile phones. It stores settings used to customize the user interface of the cell phone and includes custom window and text colors, icons, wallpaper, and other images. THM files can be created and edited using the free Themes Creator from Sony Ericsson, which is no longer developed.

Software's name License Platforms
Sony Ericsson Themes Creator Sony Ericsson Themes Creator MacWindows

Updated: January 2, 2021

2. Video Thumbnail File

Video Thumbnail File

A THM file is a thumbnail image generated by digital camcorders and software programs when a video clip is saved. It contains a small image from video clip's first frame and is used for visually browsing through a collection of video clips.

Video thumbnails are often saved to memory cards when video is captured on digital camcorders or digital cameras that record video. THM files may or may not be transferred to the computer depending on what software is used to import the video. Each THM file shares the same filename as its associated video clip. For example, "clip001.thm" would be created for "clip001.avi."

NOTE: THM files often are saved using JPEG formatting. Therefore, you can either try to open them directly in an image viewer, or you can change the file extension to ".jpg" and open them with any .JPG viewer.

Software's name License Platforms
Adobe Photoshop Adobe Photoshop Commercial iOSLinuxMacWindows
Apple Preview Apple Preview Bundled Mac
Microsoft Paint Microsoft Paint Included Windows
Microsoft Windows Photo Viewer Microsoft Windows Photo Viewer Bundled Windows
Other picture viewer Other picture viewer LinuxMacWindows
Sony Picture Motion Browser Sony Picture Motion Browser Free Windows

Updated: August 19, 2016

3. Thumbnail Image File

Thumbnail Image File

Small, icon-sized image that represents a larger image; commonly used on the Web and in clip art galleries; may be created by various photo or video editing programs; also produced by some digital cameras as small sample images of photos captured by the camera.

Software's name License Platforms
ACD Systems ACDSee ACD Systems ACDSee Commercial Windows
Apple Preview Apple Preview Bundled Mac
Microsoft Windows Photo Viewer Microsoft Windows Photo Viewer Bundled Windows
Microsoft Windows Photos Microsoft Windows Photos Bundled Windows
Other image viewer Other image viewer LinuxMacWindows

Updated: August 26, 2012

4. Thermwood Macro File

Thermwood Macro File

Macro file used by Thermwood CNC Routers; contains router machining instructions that automate router processes; a list of CNC events are also saved in a file named "hist.thm."

Software's name License Platforms
Thermwood Mastercam Thermwood Mastercam Windows

Updated: March 22, 2009

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