Thanks! When one uploads the csv file from files, she/he must first install a package (readr) and it simply states, "Preparing data import requires an updated version of readr. . ." So I always press "yes." Oddly, it just runs and runs and never stops. This has never happened previously with me nor with the students. As a result, I am trying to address this glitch asap. In a nutshell, I am unable to import any data.