File Extension Database

Open THM File

THM file extension is most commonly used by many different applications to store THuMbnails. Thumbnails are small images that are reduced size versions of larger images or videos. Thumbnails are usually created for browsing multimedia libraries. Thumbnails take less processing resources to display than full-sized pictures and much less bandwidth when they are transferred over the Internet. Some programs group multiple thumbnails together in single file. This is done to avoid unneeded strain on computer file system. Thumbnails may also be used for vector graphic formats that would be extremely hard to render in real-time.

Although thumbnail data is usually encoded using some standard algorithm like JPEG, TIFF or just plain bitmap each application would use it's own custom container format. Because of this you can open THM file only by application that created them. Also most THM files can not be opened directly. Instead they are indirectly used by software when you browse the image catalog.

THM file extension may also be used by OpenOffice software package to store its configuration information. OpenOffice is a freeware alternative to Microsoft Office that provides similar functionality.

How Can I Open THM File on Windows

We researched and learned that the best way to open THM file is to find a THM file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a THM file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open THM file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as THM file opener then try to search online for "THM viewer", "application to open THM file" or "open THM file" queries in the search engine you like.
Install the application you found and check if it can open THM file

How Can I Open THM File on Mac OS

We recommend to find a THM file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a THM file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with THM file.
If you know the Mac OS application which can work as THM file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open THM file in it.
If you don't know the application which can open THM file then try to search for "THM viewer", "application to open THM file" or "read THM file" queries in the online search engine you like.
Install the application you found and check if it can read THM file

How Can I Open THM File on Android

If you downloaded a THM file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded THM file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "THM".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "THM viewer", "THM file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open THM File on iPhone or iPad

To open THM File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the THM file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "THM". This way you can find apps which can open THM files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "THM viewer" or "THM file" online in your favorite search engine.