Backup Up Microsoft Outlook Email

Export information

1. On the File menu, click Import and Export.
2. Click Export to a file, and then click Next.
3. In the list, click the file type you want to export to, and then click Next.

Choose: Comma Separated Values.

4. Follow the instructions in the Import and Export Wizard.

Each folder will have to exported separately (inbox, sent, calendar, address book)

Note  Folder design properties such as permissions, rules, description, forms, and views are not preserved when you export to a Personal Folders file. Only the content itself is exported.

These files can be opened in excel. Make a backup copy before you open them.

If changes are made to the file it will  not import back into outlook.