USC GPA on college data

Thank you @CADREAMIN. This file definitely has more accurate and richer information!

I am new to this CC forum, maybe this is a very naive question: I would like to further understand the “un-weighted” word in “Middle 50% GPA (un-weighted, 4.0 scale)”.

for a school with a 4.0 scale (no matter it is AP or Honor class), will their GPA be taken as face value and won’t be “un-weighted”? Or is there a USC formula that might have two steps: (1) It will give credits/points for those AP/Honor courses first; (2) It will then be “un-weighted” back to a 4.0 scale? In addition, how will USA adjust the different level of rigor from different HS :-?