220k Mail Access Valid Hq Combolist Mix.zip
Implies the credentials have been recently checked against live sites and have a high probability of working (not junk data).
The file likely contains a text file or a series of text files with the following format: 220K MAIL ACCESS VALID HQ COMBOLIST MIX.zip
Even if a hacker has your password from a combolist, MFA provides a second layer of defense that is much harder to bypass. Implies the credentials have been recently checked against