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Ron's Editor is a powerful CSV file editor. It can open any format of separated text, including the standard comma and tab separated files (CSV and TSV), and allows total control over their content and structure.
This is the ultimate CSV editor, whether you need to simply edit a CSV file, clean some data, or merge and convert to another format, this is the solution for you.
Ron's Renamer is a tool for renaming many files in one go, using rules like search and replace. Batches of files can be 10's to 1000's, and span multiple directories, with an unlimited number of rules that can be combined to achieve almost any result.