[kall]

Yeah I agree. Just the combination of opening in excel on double click and being dead simple to spit out from any software makes it a winner. It helps that it's usable in plain text too.

If it would have used ANYTHING other than half the world's decimal separator as a value separator, it would be a no brainer. If it had been .psv (pipe separated values) the edge cases would be so few that we could just ignore them.

[hedora]

Gnumeric (an open source spreadsheet) has a great dialog box that pops up and lets you tell it exactly how to parse the tab delimited / csv file you just handed it. It even has a preview of what your parsing options will do to the file you're opening. Also, "gnumeric foo.csv" does the right thing from the command line.