Very useful and helpful tip. This is my first ever dabbling into SAS, since I wasn't able to read NHANES III .dat files directly into R with all the missing headers. The eXPorT file format is much easier to work with that the older .DAT ones. Had I typed out the code in a vanilla editor, I believe I shouldn't have run into the wall, or as you pointed out the original download could have experienced corruption. But the above LIST stmt you posted is great for diagnosis. Thanks again, Tom! ... View more