TCL 32B330 television archive in RAR format, roughly 2.09 MB. Only the brand and model appear in the name, with no chassis code, board number or software version. Archives like this typically carry a firmware image or memory dump for reprogramming the main board flash, or service material for fault tracing. Unpack with WinRAR or 7-Zip and identify each file. Back up the existing chip with a programmer before writing, and make sure the image size matches the flash capacity printed on the chip.
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 @hashmielecom. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.