summary page data CSV different than archived data

Hi everyone, hoping someone can help me understand why the CSV file i pull from webpagetest has such different data than the archived ZIP file.

Attached is a zip file that contains the csv file and a cat of all the IEWPG.txt files.

They both have 1000 rows, and the date/time for each test match, but most of the metrics dont match.

Why do the CSV and archived ZIP not contain the same data?

thanks for your help.