These files are designed to automate unauthorized access to accounts. The "100k" refers to the number of entries, and "Gaming - PayPal" suggests the credentials are being tested against gaming platforms (like Steam, Epic Games, or Roblox) and PayPal for financial theft.
Especially do not use any "Account Checker" software provided with such lists, as these are primary vectors for infecting your own computer. 100k Gaming - PayPal -More Combo.txt
If you found this file on a forum or "leaks" site, it is highly likely to contain malware (such as a Trojan or Stealer) if you try to open or run it with a "checker" tool. These files are designed to automate unauthorized access