The file size for a clean, unmodded version 2.10 OBB is approximately . If your file size is significantly smaller or larger, it is either corrupted or has been pre-modded with texture packs.
While "OBB GTA San Andreas 2.10" refers to the specific expansion files required to run version 2.10 of the game on Android devices, the request to "prepare an essay" invites a broader look at how these technical components sustain the legacy of a gaming masterpiece.