: Files ending in .rar or .exe from unknown sources frequently contain malware, Trojans, or ransomware .
The file typically refers to a third-party tool used for League of Legends (LoL) account management or "checking." It is most commonly used to verify account status, level, rank, or inventory (skins and champions) in bulk. Core Functions of LoL Checkers LoL Checker.rar
Are you looking to stats, or were you trying to verify the safety of a specific download you found? Apps for League of Legends - Overwolf : Files ending in
: Checking if login credentials are valid. LoL Checker.rar
If you have already downloaded this file, it is best to with a reliable antivirus or upload it to a service like VirusTotal before opening.