I'm in the same situation
Just started sieving (Newbee) and I have three files:
fact
factexcl
factrange
Not totally 100% sure what they are etc
But fact has a k/n pair of n=6.45m I don't think I'll finish the range before we reach 6.45m can we simply submit factors before the range is done???
If you can pre-submit which file contains the one we need to submit etc.