Usually the .rpm.bin files are just plain ol' RPM files with a fancy script attached to the beginning. If you read through the script part it basically does stuff like display some terms & conditions, extract the RPM part of the file to a seperate file and then install it. As shows above, it should be simple enough to run.
Ensure the file is executable:
chmod +x filename.rpm.bin
Then run the file:
Please note that the 'dot slash' is very important as this tells BASH to run the programme of that name that is found in the current
directory. If you do not put that in, then it'll come back at you with 'no such file' or something... not helpful when you know it's there! So, remember the dot slash.
Oh, just quickly say: Not all .rpm.bin files are scripts. Stating the obvious there.