RAR archive for FIC board CW001, revision 0.1, which the name links to the Itautec 7020, a Brazilian-branded system built on this First International Computer design. Itautec commonly sourced motherboards from Taiwanese ODMs, so service data is filed under the FIC code. Contents are not listed, but documentation of this kind usually serves for tracing power circuits, locating components and checking signal paths during diagnosis. Make sure the CW001 marking and Rev 0.1 on the PCB match before working from it.
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 @IT_SERVICE_WORLD. 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.