16.09.2019
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  1. Convert Ost To Pst Outlook File
  2. Convert Ost To Pst Outlook 2016 Free

Mar 5, 2018 - How to convert an ost file to pst file in order to open it in an Outlook profile.

Microsoft Outlook is a prevalent email-client application, launched by Microsoft and act as a personal data manager that is specially designed to stay connected with users and enterprises for e-communication purposes universally. MS Outlook is a highly-reciprocative program that manages your emails, contacts, calendars, tasks, note taking, journals, and other necessary items on a mail server, or on your computer system, or both. MS Outlook stores data items into OST and PST file formats. You can easily download MS Outlook free trial version to check its advanced features and amazing functionalities.

Today, online exchange of information like emails, attachments, multimedia, etc. are mostly done by MS Outlook application as it has user-friendly interface and act as a stand-alone application. The plus point of this platform is that it can fluently work with Microsoft Exchange Server and Microsoft SharePoint Server for numerous users in an association like SharePoint lists, shared mailboxes, exchange public folders, calendars, and meetings. Let's talk about the two major file formats i.e. OST and PST in brief before discussing on how to convert OST to PST in Outlook 2016, 2013,2010 and its below version.


What is OST and PST files in Outlook?

Exchange OST Files: MS Outlook stores Offline Outlook Data File ( or OST) format for synchronization with Exchange Server. It contains the essential data that can be easily accessed online and offline too. You can work offline because of its top-notch synchronization provided by OST files that fluently gets synchronized with the server data even if the MS Exchange Server is not connected. Ordinarily, when you utilize a Microsoft Exchange Server account, your email messages, schedule, and different items are conveyed to and saved on the server. The OST document is synchronized with the Exchange PC when a connection is accessible.

Outlook PST Files: Personal Storage Table( or PST) contains your email messages and other Outlook items and save it on your computer system. It helps to move or copy emails, attachments, and other items from your Mail server account to your computer. Home clients normally use an Internet service provider (ISP) to get linked over the Internet. The ISP additionally offers at least one email accounts. The most widely recognized sorts of accounts are mentioned to by their web protocol names — POP3 and IMAP. Another kind of account is an HTTP or online account that works like IMAP email accounts. Each of the three account sorts utilizes a PST document.


Why do we need to Convert OST to PST in Outlook?

There are so many reasons that enforce users to convert offline OST files to Outlook PST. Few of them are mention below:

  • Sudden Exchange Server Crash: You may face Exchange server crash due to virus attack, power supply failure, corrupt software, etc. Once your server gets crashed, then you may unable to get connected to MS Exchange server.
  • Pop-ups OST Files Errors: As we all know, the mailboxes that stores various data items in OST files, work after synchronization with MS Exchange Server. Unfortunately, due to some issues, OST files may get corrupted and the error message starts popping up on your screen to notify that your OST files can't be accessible. So, to open and view the corrupt OST mail items, you require to convert OST files to PST format.
  • Job Switching: When users left their old employer, they tries to forward all the OST files on their another account. But, they forget to realize that their all files are synchronized with Microsoft Exchange Server and can't be accessed from another account. To access the OST files on the another account, firstly you need to export OST file to Outlook PST format.
  • Corruption of OST Files: MS Outlook offers a facility in OST files that it can be view and edit online as well as offline. But sometimes, Offline OST files may get corrupted due to abnormal termination, server breakdown, lack of storage space etc.

How to fix corrupt OST files in Outlook?

The OST files get corrupted or damaged by the cause of certain technical or human errors. Then no need to be worried! Still, you can recover corrupt OST files without any time delay by using our powerful software i.e. Free OST File recovery tool which is also available on our official website. For this, choose your damaged OST file and select a recovery mode i.e. Standard, Advanced, or Deep. The software will detect all data items saved in your exchange OST file like emails, task, contacts, calendars, task, and much more. Once the recovery step is done, you can save your repaired OST file in Outlook PST, DBX, MBOX, and MSG.


Convert ost to pst outlook 2010

NOTE: Similarly, if you just want to repair damaged PST file, then use PST File repair tool that proficiently fixes all the corrupt Outlook PST files without affecting data originality.


How to convert OST file to PST in Outlook?

To export OST file to PST in Outlook (manually) with our OST to PST Converter then, follow the steps of process in detail:

  • Firstly you need to select all the OST file that you want to convert into PST format.
  • Once the file selection process is done, then choose a recovery mode i.e. Standard, Advanced, or Deep, If your OST files are corrupted.
  • Now, the scanning process will begin in which your entire OST file data like emails, contacts, calendars, tasks, distribution group, etc will get detected. The best part of using this tool is that you can also repair corrupt OST files before converting them into PST format that means if any OST email is corrupted, it will get repaired within few seconds.
  • In this step, choose any mailbox folder to migrate OST files to Outlook PST files.
  • Select the path location to save converted emails. You can also save your OST file into different file formats like PST, MSG, EML, MSG, DBX, and MBOX swiftly. To make file conversion process easier, you can select a date parameter by mentioning the date, month, & year in start date and end date box.

How to use Date Range feature in OST to PST Converter?

Regular exchange of files by using an email account, multiple files gets added in our database in which some would be important data items like emails, contacts, calendars, and tasks and few are not useful. It consumes a lot of time, if we select one file at a time for the exchange OST to PST conversion. Therefore, to save that extra time, specify the date parameter before exporting OST to PST files.

  • Include Specific Data: To save only desired date range, tick mark on the 'Save between selected date range option'.
  • Exclude Specific Data: If you want to save all other files except mentioned date range files, then tick mark on 'Do not save between date range'
  • To Add & Remove: To edit or modify date range, select 'Add Date Range' or 'Remove Date Range' that is visible at the right side.


Convert ost to pst outlook file

Why to choose SysInfoTools OST to PST converter?

  • Exports entire OST data items like emails, tasks, contacts, calendars, and much more.
  • Date Range facility reduces extra research effort for selective exchange OST files to Outlook PST conversion.
  • Available with the lowest footprint of exe files for free recovery and fast conversion.
  • Facilitates to save converted OST file into PST, DBX, MBOX, and MSG.
  • Highly consistent with Windows 10, MS Outlook 2016 and its below versions.


  • - A hassle-free technique to convert Outlook OST to PST files
  • - Avoids any risk of losing or aleterations to the Outlook data files
  • - A reliable tool that supports all available versions of MS Outlook

Outlook OST file may get easily corrupted due to various reasons. Even a minor corruption can make the complete OST file inaccessible. In such conditions, often MS Outlook email program fails to open and display the data stored in OST file. So, to overcome such OST corruption scenarios and recover all its items, make use of Convert OST to PST software.

Why only Convert OST to PST Software?


  • It performs safe and risk-free conversion of your healthy or corrupted OST to PST file
  • This new-age tool easily convert inaccessible Offline OST to PST in few easy-to-execute steps
  • Convert OST to PST software is available for FREE. Give it a try now

Convert Ost To Pst Outlook File



More Info about OST to PST Conversion


  • Convert Microsoft Exchange Offline Storage (OST) to Outlook PST file
  • Repairs corrupt or damaged Exchange mailbox
  • Retrieves lost or deleted emails, contacts, calendar etc.
  • Software supports Microsoft Exchange and Outlook 5.0, 5.5, 2000, 2003, 2007, 2010, 2013 and 2016




Microsoft Outlook application is one of the prominently utilized personal information manager worldwide developed by the Microsoft. Its main purpose is to provide communication via emails. This information manager provides user to manage all emails, calendars, appointments, journals and other Outlook attributes under one application. When the user uses this application all its attributes are stored on mail server and computer. Microsoft Outlook items can be saved in two different Outlook Data files know as .pst and .ost file. Let us know more about OST and PST file: PST file is Personal Storage Table that is created in the computer system by normal users or small companies. Users who use internet service provider (ISP) for network connectivity can save and manage all their Outlook emails, contacts, journals and other attributes in system in an Outlook Data folder called .pst.

Microsoft Exchange Server is an e-mail client that includes the e-mail server, email client and contact manager. MS exchange server is widely used in large companies in conjunction with MS Outlook application in order to take advantage of Outlook attributes like calendar, contacts, etc. If user has Microsoft Exchange Server account then all the Outlook items are sent to and stored on the exchange server. Its main advantage is that it facilitates user to work offline when internet connectivity is not available. When user is working offline, Microsoft Outlook will create a replica of user mailbox by name Offline folder with .ost extension. OST is also known as Offline Storage table which will store the offline work and all the changes made in offline mode. As soon as the network connection is available it will automatically get synchronized with Exchange Server and all changes made will get updated. Even if the user deletes any of the items from Outlook then it will be removed from the Exchange Server too. Sometimes, you may face issues while accessing or viewing your exchange data. However, there are many factors that may lead to OST corruption.

General scenarios that lead to OST file corruption are explained below:

  • OST Header File Corruption: The most vital component of OST file is OST header file. It contains important information of exchange file which is must to access it. If this file gets corrupted or damaged due to some reasons then, it may lead to Offline Outlook Data File corruption.
  • Exchange Server Upgradation: To improve email access or performance of existing Exchange Server, administrative can upgrade older version Exchange Server to a newer version of the Server. During this upgrade process it is possible that OST file present in the mailbox may get corrupted.
  • Synchronization Error: Offline Data file automatically get synchronized, when server mailbox is connected to the network and all the modification made in offline mode is updated in the Server. But if there is any interruption while this process then it may lead to synchronization error messages. Thus synchronization errors can cause Offline Outlook Data corruption.
  • Other Factors: Other Factors that can contribute to OST corruption are sudden termination of the system, abrupt Outlook termination and Bad Sectors.

Hence, in all above-mentioned cases, you can effortlessly fix it by re-building OST file and then converting it into PST by using efficient OST to PST conversion software.

Why OST to PST Conversion Software?

In many organizations, some employees at the time of leaving their present job will delete their Microsoft Outlook account or take Offline Data file with them. The fact is that if they delete MS Outlook account, data will be stored on exchange server. In other condition, if they take OST file then data can be accessed using their account that created it. But what if you don’t have any access to the computer that created OST file? Is that you won’t be able to view it? At certain times you may need Microsoft OST to PST converter tool which can be rebuilt OST file and then convert to Personal Storage file. Thus, OST to PST Conversion file for Windows is the best software to get back corrupted or inaccessible Offline Data File.

Convert OST to PST Tool can fix all types of issues related to Microsoft Offline Outlook Data file. It can easily convert inaccessible OST to accessible Personal Storage Table and along with that, it can also recover all emails, contacts, journals, notes, calendar, task, appointments and other Outlook attributes. It has inbuilt repairing algorithm which will easily repair and convert an OST to a PST file without modifying the original content of the file as it works on read-only mechanism. This conversion tool can easily convert password protected OST file to healthy PST file. This OST converter Software has advanced features that will easily convert highly encrypted OST files within a few simple mouse clicks. So, it is the best program using which all Outlook users can come to know how to convert an OST file to a PST file with utmost ease. A user can even use this tool to convert healthy OST file to Personal Storage Table file as per his convenient use without any difficulties.

Apart from above-mentioned features, it is designed in a very simple way so that users with less technical knowledge can run it without any professional help in order to convert OST into PST file. Convert OST to PST tool works effectively with all the versions of MS Outlook like Microsoft Outlook 2007, 2010, 2013 and 2016. It has the ability to even convert OST file to Outlook 2003 PST, which is the older version of Microsoft Outlook with ease. It can also repair and convert orphaned OST file to Personal Storage Table. This tool is compatible with all the latest versions of Microsoft Windows operating system such as Microsoft Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP, and Windows Server 2003 and 2008 to convert offline OST to PST file.

Some errors messages you might encounter with OST:

Sometimes a user might observe different error messages when attempts to access the damaged or inaccessible Offline Storage Table file. When this file gets severely corrupt due to some general factors then different types of errors come into the picture. Let us see some of them:

  • “Cannot open your default email folders. The file xyz.OST is not an offline folder file”.
  • “This message could not be sent. Try sending the message again later, or contact your network admin. Error is [0x80040111-00000000-00000000]”.
  • “Errors in background synchronization. In most cases, more information is available in a synchronization log in the deleted items folder”.
  • “Task ‘Microsoft Exchange Server – Sending’ reported error (0x8004060C): ‘The message store has reached its maximum size. To reduce the amount of data in this message store, select some items that you no longer need, and permanently delete them”.
  • “Unable to expand the folder. The set of folders could not be opened. Errors could have been detected in the file abc.OST. Quit all mail-enabled applications, and then use the Inbox Repair Tool”.
  • “Errors have been detected in the file. Quit all mail-enabled applications, and then use the Inbox Repair Tool”.

Such above-mentioned Outlook errors can be fixed manually. If some errors cannot be fixed manually or occur due to corrupt OST then make use of Convert OST to PST software to easily convert damaged Offline Outlook Data Files to healthy PST file. It also facilitates users to convert healthy or corrupted Exchange OST to PST file, and to know more about Exchange OST to PST conversion process, visit this page: www.convert-ost-pst.net/exchange.html

Some Safety Measures to be taken to avoid OST corruption:

  • Avoid abrupt termination of MS Outlook application and system.
  • Avoid interruption while synchronization process is going on.
  • Follow proper procedure while carrying out the Exchange Server upgrades.

Find out, how to convert OST to Outlook PST file

Step 1: - Launch this application, a window will emerge that will ask you to pick either 'Open OST File' or 'Find OST File'. Click on the option 'Find OST File' if you are not sure about the exact location of the OST file.

Step 2: In this step, you will get a screen with the help of which you need to find the OST file. Click on the 'Find' option and then hit 'Next' option to proceed further.

Step 3: Soon after hitting on 'Next' button the next screen will pop up. From this window, select the location where you want to save the converted OST file. Then click on 'Convert' option immediately to begin the conversion process.

Convert Ost To Pst Outlook 2016 Free

Step 4: Once the process is completed click on 'Finish' button to terminate the process.


What's Next:

How to Resolve Outlook 2013, 2016 Installation Problems?