OpenOffice Calc is a helpful utility for converting your spreadsheet files to other formats, including tab-delimited CSV files. This export feature is an important one that is included with other ...

Excel could do this quite easily. Just import it and delete the 4th column. Not sure if this is a one off thing or not.

Data imported from other spreadsheets or databases is already separated into fields, using something called a field delimiter—a comma, tab, space, or custom character—to separate one field from ...