Archive of 1.81 MB named for the Xiaomi (Redmi) Note 8, with a copy number in the name suggesting a duplicate download; the actual contents are not stated. Packages of this size for phones usually contain schematic pages or layout drawings rather than full firmware. Open it to see what is inside, then use any diagrams to trace supply rails, find test points and check charging or display circuits. Note that Redmi Note 8 and Note 8 Pro are different boards, so confirm the exact model before following references.
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 @esquematicosparatodos. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.