SysTools Office 365 backup solution is one of the best products to export Office 365 mailbox to PST or EML file formats. Using this utility, the users can archive complete/entire items from an Outlook 365 mailbox to the hard drive or local drive. The Office 365 Exchange backup tool backs up emails along with their attachments, calendars, and contacts from a single as well as multiple mailboxes of an O365 domain. This application allows the users to save/copy multiple O365 user mailboxes locally at once. This Office 365 archiving utility allows to export entire O365 mailboxes to PST and EML files. The exported files can later be accessed on various email applications like Thunderbird, Outlook 2016/2013/2010/2007/2003, Windows Live Mail, Apple Mail, etc. This automated solution provides an option to apply filters (users, date, and email based filters) to download/backup only the most important data which needs to be archived locally. The Exchange Online backup software also displays the progress status report while the export process is still in progress. The progress status shows the items count which have been successfully archived. This application maintains the original folder hierarchy and the meta properties (like Cc, To, Bcc, etc) even after the export process is complete. The tool provides naming convention option which allows the users to give the name of their choice to the backed up EML files. The SysTools Office 365 backup software works efficiently on Microsoft Windows 10 and all below versions