Small 214 KB ZIP archive associated with the TSUMV39LV, an MStar scaler controller used in LCD TVs and monitors, together with the label T7S whose meaning is not explained in the name. It most likely contains firmware for a board built around this chip, though the contents should be checked after extraction. Such files are written to the board SPI flash with a programmer or via a service tool. Match the board marking and panel resolution, and back up the original flash before writing anything new.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @gunvantrathore. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.