If you want to quickly and simply convert PST files to multiple file formats, I would suggest the most effective solution, the MacSonik PST Converter. The software can backup or migrate the PST files with or without the attachment of mails and it maintains the original data hierarchy. It has features to convert or migrate the multiple files in bulk to the multiple file formats and email clients. Some of the file formats and Email clients in which the software can convert PST file to MBOX, EML, EMLX, MSG, PDF, CSV, GIF, JPG, TIFF, HTML, etc, Gmail, iCloud, IMAP, AOL, Amazon WorkMail, and many more.