Microsoft Excel has an import wizard, but if you structure the text correctly, you can bypass the wizard altogether.

How to Convert All Excel Sheets to CSV With Macros. Excel's Save As command lets you save a single worksheet in the CSV (comma seperated value) format, but not an entire workbook. Saving ...

A better tool for editing CSV files ModernCSV, an indie app for Linux, Mac, and Windows computers, is the best tool I've come across for this purpose. If you work with CSV files frequently, or ...