If you get Your Outlook data file cannot be configured error when opening Microsoft Outlook and your email account, see this post for the fixes.

Fix You cannot delete this Outlook data file, Configuration information in the file is being copied to your new default data file error.

Your Outlook Data File is composed of a file header, located at the beginning of the document, and the actual data that makes up your personal folders. Contained in the header is information about ...

Solutions to Fix Common Problems and Errors With outlook PST and OST Data Files If you encounter issues with your Exchange or Office 365 (Microsoft 365) account in Outlook, follow these solutions to ...

What data file types does Outlook support? While working with Outlook, you will encounter two data file types: OST and PST. OST (Offline Storage Table) file types allow you to work offline.

If you're attempting to import emails, contacts and calendar data into Outlook using a file format other than CSV, that in itself can cause errors. If you're moving Outlook data from one computer ...

If Outlook is slowing down, it’s probably time to shrink your Outlook.pst data file. By default Outlook 2007 can handle a 20GB data file, and Outlook 2010 can manage a 50GB one.

When Outlook has problems opening or items are missing from your inbox, you can use these steps to troubleshoot and fix issues with the data files.