Not in every version. I recently found out that Excel doesn't recognize commas as separators in a comma-separated-values file on my coworkers PCs. I presume it

Not in every version. I recently found out that Excel doesn't recognize commas as separators in a comma-separated-values file on my coworkers PCs. I presume it's because Germany uses the comma as a decimal separator instead of a dot. I eventually settled on just exporting Excel because I couldn't get both the encoding and separator to work at the same time. Another fun story is that a coworker lost data, when they opened a csv, wrote data to a second sheet, and then saved it. A sane program would probably have brought up a save-as window. Excel didn't. It just discarded the second sheet.