Ever come across a situation when you need to search for a keyword among many text files in some folders? This app is to serve that need.To configure, set the input folder (at least one), file extension (optional), file search word. Tap Execute Rule to start looking for text files that fulfill the criteria or tap Save Rule to save the configuration to be re-used later.Please note the File Search Word allow Regular Expression OR Normal mode. For users not familiar with the term Regular Expression, you can ignore and always stick with Normal mode.The application support English, Simplified Chinese, Traditional Chinese display.