It is very difficult to search a word inside files and you have hundreds of words. PRGrep, a word search tool that helps to find a word or string in text and more effectively if you have lot of files with sub directories.

Features of PGrep Word finding software:-

• Supports text search in files which are located in sub-directories.
• Multiple File search both text and binary.
• Allows to save your search parameters for re-usability.
• Export search result in .csv,.txt, excel and xml format.
• Allows to open the files which are found in search result directly from the application in one click.
• It uses Grep unix utility, one of the most advanced search function used for same purpose, the results are very accurate.

Download Pgrep word search utility

http://www.softpedia.com/get/System/File-Management/PRGrep.shtml