No you need the license file, theres no way round it.
I even tried picking the file apart but its encrypted.
The way they have to setup now is sims checks back to see if you still pay your yearly fee. The License file stays the same.
The old way was better, we used to wait until the start of October to import the year 8 pupils and then import early the next year before the file ran out. I think they realised people were getting 2 years for the cost of 1.