Large software archive of about 267 MB described as audio chipset drivers for Chromebooks, with a misspelled name. No specific models, codecs or versions are stated. Such packs are typically used after installing Windows on a Chromebook, where audio often does not work out of the box because of uncommon codec and DSP setups. Check which audio hardware your model uses before installing, scan the archive for malware, and create a restore point first.
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 @hrtechno. 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.
7-ZipWinRARThe Unarchiver (macOS)