The interface of the Kernel for OLM to PST software is developed for any category of users, including technical as well as non-technical user. The Advance OLM to PST software generates the hierarchical preview of all the OLM email items, which helps in selecting the desired emails to save them in various file formats and locations, like TXT, RTF, MSG, MHTML, MBOX, PST, DBX, EML, IMAP, HTML, email servers, and Web-enabled email apps.