The Filter feature allows you to filter the files you are interested in by viewing in the directory tree display. There can be a situation when the total found data contains too many file(s) but you only want to recover and see only some application specific data, like all the text file(s). To add Filters follow this step:
Click Tool Menu> File filters , then it displays the following screen :
This option gives you the authority to recover and see only the file(s) that you want to recover. The software will filter only the file(s) that you want to recover and it will hide rest of the file(s).