A THUMBDATA3-1967290299 file contains properties about thumbnail images stored in the Android camera app. It helps the app load thumbnails quicker. The more images in the app, the larger this file gro...
A THUMBDATA3-1967290299 file contains properties about thumbnail images stored in the Android camera app. It helps the app load thumbnails quicker. The more images in the app, the larger this file grows. It may reach several hundred MBs or GBs. To reduce its size, remove images from the Gallery app. Then delete this file. Gallery will regenerate it with data for remaining images only. You can also delete this file and create a blank one to stop Gallery auto-regenerating it. Use Android file manager to access thumbnail index files in sdcard/DCIM/.thumbnails.
The number in this file name is an ID unique to each device or instance. Although large, deleting these files causes the system to recreate them when thumbnails need displaying again. Google Android opens THUMBDATA3–1967290299 files by default.
Programs supporting this file extension are listed in the table below. Such files can be copied across platforms but may not open properly everywhere. Verify you have the latest Android version assigned to THUMBDATA3 files. Also ensure files are complete and error-free.
If files fail opening, the app needs updating to support the format. Or the file contains viruses – scan with antivirus software. Online .THUMBDATA3 tools allow viewing, editing and converting without installation.