Archive for the Lenovo ThinkPad X41, a compact 2.33 MB RAR. The file name carries nothing beyond the model, so there is no board number, revision or content list to go on, and the package needs to be opened to see whether it contains schematics, a boardview or firmware. For an older ThinkPad like this, a schematic is the main tool for tracing rails, checking the charging circuit and finding test points. Make sure the board number on the PCB matches the documents inside before measuring or replacing anything.
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.