COOPY is a set of tools for distributed data projects. It supports diffing, patching, merging, and revision control of tables in a variety of formats (CSV, Excel, MySQL, Sqlite, etc).
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
MySQL, SQLite, and Excel support were improved. The documentation for diff format was greatly improved. The implementation of diffing and patching was improved, using column name and index information when available (but not relying on it).