Accessing or using combolists to log into accounts without authorization is illegal (unauthorized access) and violates the terms of service of almost every platform.
If you are a security researcher looking to analyze the "long feature" aspect (likely referring to the specific data format or extended attributes in the list), please proceed with extreme caution in a . 25K Combolist private shopping - DXP.txt
If you found this file and your own credentials might be in it, you should immediately change your passwords and enable Two-Factor Authentication (2FA) on all sensitive accounts. You can check if your email has been part of known breaches via the Have I Been Pwned service. Accessing or using combolists to log into accounts