The Android OS *.tec files represent preview thumbnail files for all images processed by the OS and are used for caching purposes, in order to speed up image operations. A lot of popular Android-based devices as Samsung Galaxy, HTC, etc. generate such thumbnails. TEC to JPG Batch Converter converts Android image thumbnail files (*.tec) to jpg images that can be easily handled and displayed by any image viewer, editor, office application etc.
Download and use it now: TEC to JPG Batch Converter