There are dozens of Email clients Applications that have been used from a long time, as we know the primary feature of any email client is to send or receive mails. So there must be a database file for each email clients where all these information get stored. Different email applications use different file format to save these information so there are several file formats created by email clients which can be open and read only in particular application. Intrigua provides users several free software to view and read different file formats successfully.