I received this answer from the CDC:   Dear Mr. Bremser, Hello and thank you for your inquiry. Dave Flegel here. I am a tech writer working with BRFSS in CDC. I sent your correspondence to the tech crew here. They note that they have been able to use the data set with Windows 10; they have not been able to duplicate the issues that you reported. Over the last year or so, we have received a few inquiries from data users who have had trouble downloading the data sets on Macs (where our team has then recommended using assistance software that can help with the downloading) but we did not hear any specifics about the troubles they were having.    Thank you for bringing this issue to our attention, in case we receive inquiries in the future from data users who encounter related troubles.   Sincerely,   (name edited out for privacy reasons)     "Your download of 2016 BRFSS Data (SAS Transport Format) has a not-so-nice problem: the name of the contained file ends with a blank after the .XPT, which needs an extra renaming step so that the file can be used with SAS. Since this blank is not obvious to most users, they get problems. (see https://communities.sas.com/t5/SAS-Studio/Converting-BRFSS-2016-XPT-to-SAS-file/m-p/453073)"         No comment. ... View more