: This is the unique identifier for the release. In this context, "GF" often refers to Girlfriends Films (a major adult film studio), and "191022" represents the release date ( October 22, 2019 ).
: This is the specific title abbreviation. For this studio and date, it likely stands for the series "Ultimate Lesbians On The Cam." GF191022-ULOTC-FLT.part03.rar
Do you have in that same folder for extraction? : This is the unique identifier for the release
: Ensure you have every numbered part (e.g., part01 through partXX) in the same folder. GF191022-ULOTC-FLT.part03.rar