What is a THUMBDATA3-1763508120 File Type?
The file THUMBDATA3-1763508120 is created by the Gallery application to cache information on images that have been indexed. Caching allows the Gallery application to load the images faster and reduce the time needed to display the thumbnails.
The larger the file THUMBDATA3-1763508120, the more pictures you have in the appos; application Gallery. If you have a large number of thumbnails in your Galerie application, it can become several GB in size. Each time the file size increases, a new image is added. Also when an image is deleted, the indexed properties of the image remain.
To reduce the size of the THUMBDATA3-1763508120 file you must delete the images from l' application Gallery then delete the file THUMBDATA3-1763508120. The file will be regenerated by Galerie application but only for images still in the application.
Use an Android file manager to navigate to your d' thumbnail indexes, which can be found in the sdcard / DCIM / .thumbnails directory.
The THUMBDATA3-1763508120 file is currently found with .THUMBDATA3-196729029 file.