NB: This option is available only when you recover passwords for opening Microsoft Word, Excel, PowerPoint 97-2016, OpenOffice documents.
1. Go to Mask Symbol field and put the symbol denoting mask. Default symbol is "?".
2. Go to Mask section and set the mask. Use the earlier preset symbols when indicating unknown positions in a password. E.g. set the mask "password??????" for the kind of passwords "password" plus "six unknown symbols".
3. Check the rest fields and start a search – click "Finish".