[shrikant]

CSV/Delimited file format management, for sure. (Reading, writing, choice of field/record delimiters, escaping, working with Excel's CSV quirks, etc.)

[NetMageSCW]

In a wider scope, I’ve always thought there is an entire area on data processing and manipulation that is missing in CS (and CI) curricula. Not just CSV files, but XML, JSON, maybe some HL7, Pivot Tables, today Excel dynamic array formula, SQL and some functional style processing like data structure LINQ. Plus tools for doing processing like RE, grep, sed, maybe even AWK.