Searching a string of text from a file to replace it with “find and replace function” can be easy. However, replacing a string of text from multiples files at once can be a difficult task.

Windows Grep is a tool that use to replace text globally, it will search for a string of text you specified from wide range of files including Microsoft Word documents, text format files, Html format files, Zip format files and allow you to replace them at once.

It is a very useful tool, especially for programmers. And it is free.