: This indicates that the file is only the first piece of a larger compressed folder. You would need the remaining parts (part02, part03, etc.) to successfully open and view the contents.
If you found this in a professional portal or a technical repository, it's likely a . Since I don't have direct access to the internal contents of private or encrypted .rar files, could you clarify where you came across this? GF030123-T7UE-4.20-ELA.part01.rar
: This often refers to a date (March 1, 2023) or a specific project code. : This indicates that the file is only