Data Prepper is a tool for preparing tabular data to be used in another application, such as a database or a website. With it, you can extract columns from files, rearrange the columns, reformat the data, replace the data, and merge multiple files in to one output file.
Data Prepper can be used for many important tasks, such as:
Read more about it on the Mac App Store.
Download a TRIAL Version that is limited to prepping 25 lines total.