Software & Apps › MS Office Find out Where Outlook Stores Your Mail, Calendar, and Other Data The location of your personal folder file depends on the Outlook version Share Pin Email Print Dimitri Otis / Getty Images MS Office Outlook Word Excel Powerpoint By Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated February 03, 2020 Microsoft Outlook stores your email messages, contacts, calendars, and other data as .pst or .ost files in folders that can be difficult to find. Here's how and where to look. Instructions in this article apply to Outlook 2019, Outlook 2016, Outlook 2013, Outlook 2010, and Outlook for Office 365. Go to the File tab. Select Info. Select Account Settings > Account Settings. Select Data Files. You'll find the location of your Personal Folders files next to each email account that is set up in Outlook. Select an account. Select Open File Location to open the folder where your Outlook data files are stored. Email messages for Microsoft Exchange, Office 365, and Outlook.com accounts are backed up on your email server. In most cases, these types of accounts do not have Personal Folders files.