| File Type 1 |
Thumbnail Image File (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
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. |
| Program(s) that open thm files |
Mac: Apple Preview; Other image viewer
Windows: Microsoft Windows Photo Gallery; ACD Systems ACDSee; Other image viewer |
| File Type 2 |
Video Thumbnail File |
| File Format |
Proprietary File |
| Common? |
No |
| File Description |
Thumbnail image of a video clip created when the video clip is saved; stores a small image from the first frame of the video clip it represents; used for visually scanning through multiple video clips.
Video thumbnails are often created on digital video cameras and 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 the video clip it represents, i.e. "clip001.avi" and clip001.thm." |
| Program(s) that open thm files |
Mac / Windows: Any picture viewer |
| File Type 3 |
Sony Ericsson Theme File |
| File Format |
Proprietary File |
| Common? |
No |
| File Description |
Theme file used by Sony Ericsson mobile phones; stores settings used to customize the user interface of the cell phone; includes custom window and text colors, icons, wallpaper, and other images; can be created and edited using the free Themes Creator from Sony Ericsson. |
| Program(s) that open thm files |
Mac: Sony Ericsson Themes Creator
Windows: Sony Ericsson Themes Creator; Theme Creator Pro |
| File Type 4 |
Thermwood Macro File |
| File Format |
Proprietary File |
| Common? |
No |
| File Description |
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." |
| Program(s) that open thm files |
Windows: Thermwood Mastercam |
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