.THM File Extension

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.

A THM file is a thumbnail image generated by digital camcorders and software programs when saving a video clip. It contains a small image from the video clip's first frame and is displayed to help a user identify a clip when visually browsing through a collection of video clips. THM files often are saved in the JPEG format.

When you are capturing video with a digital camcorder or camera, the device creates a thumbnail of the video and saves it to its memory card or internal storage. Then, when you import video from a camcorder or camera, the software you are using to transfer the video also transfers the associated THM files.

Each THM file transferred from a device to a computer shares the same filename as its associated video clip. For example, a THM file for clip001.avi is created as clip001.thm.

You will likely never need to open a THM file since the software program you use to browse video clips displays the thumbnail image next to the video clip.

However, if you encounter a THM file and need to open it individually, you can attempt to open it directly with an image viewer, such as Microsoft Photos, Microsoft Paint, or Apple Preview. If that does not work, you can change the .thm file extension to .jpg and attempt again to open it with an image viewer.

NOTE: If the THM file is not saved in JPEG format, you will likely be unable to open it with an image editor.

If the THM file is saved in JPEG format, you can convert it to other formats with many image editors, including Microsoft Paint, Adobe Photoshop, and Apple Preview.

For example, Paint can convert THM files saved in JPEG format to the following formats:

• .JPG - JPEG Image
• .JFIF - JPEG File Interchange Format
• .PNG - Portable Network Graphic
• .GIF - Graphical Interchange Format
• .TIF - Tagged Image File Format
• .BMP - Bitmap Image
• .HEIC - High Efficiency Image Format
• .DIB - Device Independent Bitmap

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."

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.