Hi TJ,
Please add the data file to the folder /usr/sap/trans/data if its unix or to Drive:\usr\sap\trans\data if on windows and
similarly add the cofile to the the folder /usr/sap/trans/cofiles if its unix or to Drive:\usr\sap\trans\cofiles if on windows operating system.
Then add the transport to R/3 import queue.Tcode Stms_import - > Extras ->Other Requests->Add
give you request name and add .
Then you can either read the content by selecting the transport and double clicking on it or go to Tcode SE01 tab display .Give the request name and choose display button.Hope it helps.
Regards
Amit