Confusing to the points where I had (university) students that told me "I _only_ have the file in Excel [and therefore can not share it with you]". That stateme

Confusing to the points where I had (university) students that told me "I _only_ have the file in Excel [and therefore can not share it with you]". That statement confused me until I left academia and was forced to work with MS Office for the first time. Having files in 4 different locations really does not help.