OST File,PST File,OST To PST conversion in Microsoft outlook

Microsoft outlook is an email client widely used all over the world by microsoft lovers

generally if you are a IT engineer or in the field of IT you may encounterd with the word "OST File"
and "PST File". You may fill requirement or request from your user about ost to pst conversion.


Let us here explain what is OST File in microsoft outlook ? what is pst file in microsoft outlook ?
why we need to convert ost to pst sometimes and how to convert ost file into pst in microsoft outlook.

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OST File :

Offline or cached Outlook items (.ost)

Email accounts, such as Microsoft Exchange, Outlook.com, or IMAP keep your mail on a server. The Offline Outlook Data File (.ost) is a synchronized copy of the account saved on your computer, and is stored in one of the following default locations, based on the client version and the Outlook account type:

• drive:\Users\<username>\AppData\Local\Microsoft\Outlook
• drive:\Documents and Settings\<username>\Local Settings\Application Data\Microsoft\Outlook

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How to backup emails, calendars, contacts, tasks, and notes (.pst)

An Outlook Data File (.pst) contains your backed-up email messages, calendars, contacts, tasks, and notes, and can be stored in one of the following default locations:

• drive:\Users\<username>\AppData\Local\Microsoft\Outlook
• drive:\Users\<username>\Roaming\Local\Microsoft\Outlook
• drive:\Users\<username>\Documents\Outlook Files
• drive:\Users\<username>\My Documents\Outlook Files
• drive:\Documents and Settings\<username>\Local Settings\Application Data\Microsoft\Outlook

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Refrence : https://support.office.com/en-us/article/Locating-the-Outlook-data-files-0996ece3-57c6-49bc-977b-0d1892e2aacc