A repair software package. Shared as “libusb-win32-devel-filter-1.2.6.0_MobileGuru4.com.exe” — a .exe file, 626 KB.
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 @ShareMan_Electronic_Files. Enginerys does not host this file.