Generally, Outlook 2013 uses a PST file only for POP3 mail accounts, and for creating backups and archives. If your data file has an .ost extension, it means you're using an Exchange or IMAP mail ...

Make sure to create a backup of all your mail items from Outlook to a local PST file. You can use the Outlook Import/Export wizard to create these backups. You can also use advanced tools or ...

The PST file can store thousands of contacts, so you need to make sure you place them in the correct folder and don't create duplicates. Click "File," select "Open & Export" and then click "Import ...

Methods to Manage Large PST Files in Outlook. You can use the methods discussed below to manage PST files in Microsoft 2007, 2010, 2013, 2016, 2019, and 2021. 1. Archive Old Emails. Archiving emails ...

Steps to Import the converted PST file into MS Office Outlook 2010. 1. ... Any size of OST file can be converted into PST format. 4. You can create single PST files for multiple OST file. 5.