Small 7z archive of 95.1 KB associated with the Xiaomi Mi 8 Lite phone; the name, written as Xiomi, does not say what is inside. At this size it is unlikely to be a full firmware package and is more probably a schematic fragment, diagram, layout file or a small utility. Extract it with 7-Zip or a compatible tool and inspect the contents before relying on it. For phone repair, confirm any board reference inside matches the PCB of the unit on the bench, since regional variants can differ.
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 @esquemaseletricos. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.