RAR archive of about 3.17 MB filed under the TCL 32D10 LCD television. The name gives only the brand and model, so the contents are not stated; TV archives of this size usually hold a firmware or EEPROM/flash dump, sometimes with a service schematic. Open it with 7-Zip or WinRAR and inspect each file before use. If it holds a dump, read and save the original chip with a programmer first, and confirm the main board number and panel match your set, since TCL fits different chassis to one model.
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.