Outlook File Location Windows 11 Jun 2026

%LOCALAPPDATA%\Microsoft\Outlook\ (Expands to C:\Users\YourUsername\AppData\Local\Microsoft\Outlook ) File name example: yourname@company.com.ost

(Full path: C:\Users\YourUsername\AppData\Local\Packages\Microsoft.OutlookForWindows_8wekyb3d8bbwe\LocalCache\ ) outlook file location windows 11

%APPDATA%\Microsoft\Outlook\ (Expands to C:\Users\YourUsername\AppData\Roaming\Microsoft\Outlook ) outlook file location windows 11