File Extension Library

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.THUMBINDEX File Extension

  • Category: Database Files

What is an .THUMBINDEX file?

.THUMBINDEX file extension has been classified as Database Files.

.THUMBINDEX is Motorola Media Finder thumbnail index

The thumbindex file extension is associated with the Motorola Media Finder.

Media Finder is application for Motorola mobile phones with Motorola proprietary operating system as well as is installed on some Motorola smart phones with Android operating system.

The thumbindex file is for internal purposes of Media Finder and contains index of image thumbnails stored on SD Card.

.THUMBINDEX file format is deprecated and this file format is no longer supported.

Currently, .THUMBINDEX file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

The thumbindex files are used for internal purposes of Motorola Media Finder.

How to convert:

Conversion to other formats is not possible.

How to Open .THUMBINDEX file on different platforms

Open .THUMBINDEX File on Windows

  • Right-click a .THUMBINDEX
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .THUMBINDEX file and Select check box "Always use this app to open .THUMBINDEX files" Press "Ok"

Open .THUMBINDEX File on Mac

  • Right-click (or Ctrl + Left-click) the .THUMBINDEX file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .THUMBINDEX File on Linux

Right click on the .THUMBINDEX file, choose "Open with" and select a program from the list above

Open .THUMBINDEX File on iPhone

Select a file. If you don't see an application to open the .THUMBINDEX file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .THUMBINDEX File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .THUMBINDEX files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .THUMBINDEX files

  1. You need to update the application that you normally use to open .THUMBINDEX files. Only the latest version of the software supports the current .THUMBINDEX file format
  2. You need to check the .THUMBINDEX file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)
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