Thanks for your response. I actually ended up figuring it out after messing around with it. For those of you who are interested (it may have been obvious the whole time), here's what I did. To use the %squeeze macro code,  you first run as is (copy and paste the code as given by sas WITHOUT any modification). So don't insert your data input or anything and let it run. Should be all black in the logs. Then afterwards use this code  libname sample 'C:\Program Files\SAS Institute\SAS\V8\dmine\sample' ; proc contents data=sample.dmdcens ; run ; %SQUEEZE( sample.dmdcens, squozen ) proc contents data=squozen ; run ;  Here is where you would insert your own data. The purpose of this code is to reduce number and character bytes to reduce the memory file of your data. Great for big data sets. Thanks! ... View more