How to Open Outlook Offline OST File in Outlook on Mac & Windows OS?

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When using Microsoft Outlook, the worst situation is when a user’s profile is destroyed or changed. There may be many conditions when altering of user profile becomes necessary or maybe gets deleted unintentionally. Offline Storage Folder (OST) files are regarded as an offline replica of your Exchange server’s mailbox’s server-based folders. When you are unable to access your Exchange Server data due to any possible reason then, all you have is your OST file, which is located at the local client or (MS Outlook) system. So the question is how to Open Outlook Offline OST file in Outlook?

Instant Solution – Use CubexSoft OST Converter Software to solve how to open Outlook Offline OST file in Outlook PST file format with easy steps. This software comes with so many unique and amazing features for users to effectively export bulk OST data file to PST file format without using Outlook application. It supports various file formats such as – OST to PST, PDF, MBOX, EML, MSG, DOC, RTF, Maildir, Office 365, Gmail, G Suite, Exchange Server, and many more. It was compatible with both Mac OS and Windows OS including Windows 11. 

Introduction to Microsoft Outlook Offline Format & PST

Microsoft Outlook is a personal information manager email client from Microsoft, a part of the Microsoft Office suite. Despite being primarily an email client, it has fantastic features like a calendar, task manager, contact manager, notes, journaling, and web browsing.

OST( Offline Storage Table)= Most email accounts, such as IMAP accounts, Office 365 accounts, Exchange accounts, and Outlook.com accounts use an Offline Outlook Data File called (.ost) file to store a duplicate copy of your mailbox information on the local computer. When a user’s connection to the mail server is interrupted, for example, when a user is on an airplane without WiFi connection or if the internet connection is disconnected, the user can still access all emails, calendar data, tasks, contacts, and that have been previously downloaded. Users can read and compose messages, create appointments, and add contacts. But still, email messages won’t be sent and no new messages will be downloaded until your internet connection is restored. When the connection is established again, modifications are automatically updated, making the folders and contents on the server and your machine identical once more.

PST (Personal Storage Table) = An Outlook Data File (.pst) contains user messages and other Outlook items and is saved on the user’s computer. Users can create POP accounts—, which is a common type of account, when adding an email account from an internet service provider, and—download all email messages from the mail server and save them on a personal computer.

Can We Import OST File into Outlook Manually?

Yes, users can import the OST file into Outlook (.pst) here is the Manual Technique to Import Outlook OST file to Outlook PST format.

Requirement:
The first thing is a good internet connection with the Exchange Server and the next thing is Outlook email client must be installed on the user’s local computer system.

Step 1: First user need to launch Microsoft Outlook.

Step 2: Click the File menu option, select the “Import and Export

Step 3: In the Import and Export panel, click the “Export to a file” option and then click the Next button

Step 4: Now select OST File and click Next proceed to the further

Step 5: Now select the mailbox file to export from

Step 6: Browse and select the desired target folder where you want to save the new PST file and click the Finish button.

Problems with Manual Methods

There are lots of problems with manual processes as if the user cannot recover the Exchange mailbox from orphaned OST files. Second, the same Exchange account is needed; it means a user cannot access an OST file with a different Exchange account. Outlook email client cannot open corrupt OST files. It is a time-consuming process where users need to have some technical expertise.

Complete OST to PST Conversion Solution 

Now the point is what is the best way to convert OST file to PST format or how to Open Outlook Offline OST file in Outlook? Then there is the best tool, which provides Complete OST to PST Conversion for the users. CubexSoft OST to PST Converter Tool is a complete toolkit integrated with genuine features along with a user-friendly interface.

Some Features of Microsoft OST to PST Converter Tool

  • The advanced solution with the flawless Migration process
  • Bulk OST to PST migration in single processing.
  • Maintains all Folder Structure.
  • No Restriction on Files Size & Amount.
  • Works on all Outlook Editions, Mac OS, and Windows OS Supported.

Conclusion

The above article contains two solutions which first being a manual solution and the other is a third-party tool, so now it’s totally upto you to think that which method should be beneficial for the conversion procedure. And if you want to test OST to PST Converter before purchasing so you can install the free trial version that allows you to convert the first 25 OST items to PST format free of cost.

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