THUMBDATA3 File Extension
Have a problem opening a .THUMBDATA3 file? We collect information about file formats and can explain what THUMBDATA3 files are. Additionally we recommend software suitable for opening or converting such files.
Have a problem opening a .THUMBDATA3 file? We collect information about file formats and can explain what THUMBDATA3 files are. Additionally we recommend software suitable for opening or converting such files.
The .thumbdata3-[10 random digits] extension is a service extension used within the Google Android operating system. Android is an open-source operating system based upon the Linux kernel and developed with strong support both from Google, Inc. and the international community. Android is dedicatedly targeted at touch-screen mobile devices such as smartphones, tablets etc.
The "thumbdata3" part of the extension stands for 'Thumbnail Data,' and such .thumbdata3-[10] files are simply binary files that contain preview images (thumbnails) for images located in a given directory. There is a separate .thumbdata3-[10] file in each directory containing image files, usually on external storage media (SD cards etc.).
Such thumbnail files are created automatically the first time a directory with images is accessed and are usually left behind even when images are deleted.
Such .thumbdata3-[10] files are service files and are not meant to be opened by the user. Still, they can be safely deleted to save storage space, as they will be re-created by the system when needed.