.THUMBDATA4 File

The thumbdata4 file extension is associated with the Android, an operating system based on Linux kernel developed by Google for smart phones and tablets.

The thumbdata4 stores temporary thumbnail database generated by Android for pictures and other multimedia content stored on the phone's local data storage, or SD card.

Behind thumbdata4 extension are two dashes "--" and number generated randomly depending on the device or something else.

.thumbdata4--number

.thumbdata4--1967290299
.thumbdata4--1763508120

How to open:

These files are not meant to be opened directly and only server for cache purpose. You can safely delete them if needed.

How to convert:

The *.thumbdata4 file type can't be converted to any other file format.