Samsung SM-T111 tablet material in a 1.74 MB ZIP archive; the model belongs to the Galaxy Tab 3 Lite line. The name gives no detail about the contents, which for a pack this size are usually schematic or layout pages. Use them to follow power rails from the PMIC, trace battery and charging lines, check the display and touch connectors and locate test points when the tablet will not power on. Extract the archive, review what is included and confirm the mainboard revision printed on the PCB matches.
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 @tamirat_moobile. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.