MassReplaceIt is a utility that performs a find and replace on the contents or filenames of multiple files at once. A search is simple to set up, yet provides powerful features such as a mask and saveable queries. Additionally, there are a number of options to control a search, such as case sensitive and whole words options and a choice of searching entire files or just the beginning or end.
Full Specifications
What's new in version 3.0
User interface refinements across the whole application
Improved saved search management
Compatibility improvements, including 64 bit support and code signing