So what's the pattern, it's something that can easily be coded? Or you have the file names in a data step? If so, then you can look at that macro tutorial I included in my first answer and you can convert that program above to a macro and import all the files using call execute.
Here's another good reference.
https://stats.idre.ucla.edu/sas/seminars/sas-macros-introduction/If you're having issues, post the full code you're using and the log to help with debugging.
When programming macros, I also recommend turning on the debug options:
options mprint symbolgen;