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3 steps to open file with THUMB extension

Usually solving problems with THUMB file is simple – just install proper software and open the file. Read the guide and open THUMB file now!

  1. 1. THUMB File Extension
  2. 2. What is a(n) THUMB file?
  3. 3. How to open THUMB file?
    1. 3.1 Install a program that supports THUMB files
    2. 3.2 Find and download proper software
      1. 3.2.1 Programs that support files with THUMB extension
    3. 3.3 Check the THUMB file for errors
  4. 4. Similar file extensions

THUMB File Extension

File
  • File type JAlbum Thumbnail Format
  • File developer JAlbum
  • File category Raster Image Files
  • File popularity rating
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What is a(n) THUMB file?

The THUMB extension is used in JAlbum, which is used to organize photos on a mobile device. A THUMB file contains a miniaturized copy of a larger photo. This thumbnail is visible when you are viewing multiple photos in the album at the same time.

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How to open THUMB file?

There could be multiple reasons for which the system does not support given file. In the case of THUMB extension, it is probable that none of the installed programs support given file type. Therefore, user should undertake the following steps

Step 1: Install a program that supports THUMB files

If an application that supports THUMB files is installed on user’s system, but is not used to open such files by default, right-click on the file icon and choose "Open with" option from the menu. Next, select the proper application and check the "Always use the selected application to open this kind of files" box. The system will store this information in its registry and use the selected program to open files with THUMB extension by default.

Hint for Mac OS users

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For Mac OS users the procedure is analogous – open the file menu by right-clicking on the THUMB file and choose "Information" option and select "Open with program" option. From the submenu select an application and click on "Change all" button.

Step 2: Find and download proper software

Inability to open THUMB files may also be related to the lack of any application that supports given file being installed on the system. Should that be the case, user needs to download and install one of the following applications. Once installed, the system will automatically associate newly installed application with THUMB files. If this step fails, see step 1.

Programs that support files with THUMB extension

Windows programs
Windows
MAC OS programs
MAC OS
Linux programs
Linux

Step 3: Check the THUMB file for errors

Sometimes, although relatively rarely, steps 1 and 2 might not lead to expected results. There can be several reasons for such situation to occur:

  • THUMB file has been downloaded from the internet but for some reason it is incomplete. In such case the file should be re-downloaded and opened again.
  • Structure of given THUMB file could be corrupted and as such the program is not able to open the file
  • Storage medium on which the file was stored is damaged
  • It is important to ascertain that the icon representing given file is not a shortcut a related THUMB file no longer present in the location to which the shortcut points
  • If the user account has restricted access privileges it is advised to contact the system administrator or an IT expert

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