Free .CSV text file editor for Mac OS X? I am looking for a free editor to edit comma-delimited text files, or .csv format.
Table Tool

Free and Open Source (MIT License).

Table Tool opens CSV files. It auto-detects character encoding and record separator (comma/semicolon/tab), and supports basic editing operations (like add row, delete row, add column delete column etc).

Table Tool can convert files to a different format.

Table Tool is also available on the Mac App Store.