Advanced Repair Tool for Outlook

Stellar Repair for Outlook Technician is our most advanced software for Outlook data file restoration. Aside from resolving corruption, it splits & compacts large PST files, and can also export them to Office 365.

  • Restores corrupt PST & retrieves mailbox items in the exact, original form
  • Can compact PST file to save disk space & help improve Outlook performance
  • Can split PST file based on email ID, size and date to facilitate mailbox organization
*The free demo version of the Outlook repair tool repairs Microsoft Outlook file and shows the preview of the mails and other items. To save the repaired file, you need to buy the full version

Professional Software to Repair, Compact and Split PST Files

Technician edition of Stellar Outlook PST repair application is a preferred software of advanced users of Outlook, as it assures them against mailbox data loss due to deletion and corruption. In addition, the tool also allows power users of Outlook to compact and split their PST files to help optimize performance, reduce chances of corruption, and improve maintainability. The ability to export mailbox data to Office 365 further expands the utility of this software.

  • Can export PST file to Office 365 after the repair process
  • Can save mailbox items in EML, MSG, RTF, HTML, PDF, DBX or MBOX formats
  • Supports Microsoft Outlook 2019, 2016, 2013, 2010, 2007 and 2003

Stellar Repair for Outlook Technician supports many use cases:

Unable to Access Mailbox Data due to PST Corruption?

PST file corruption is a common issue, faced by users across all Outlook versions. PST file may get damaged when its components are lost or overwritten due to file system related problems. This results in permanent loss of complete or partial mailbox data which becomes inaccessible. Stellar Outlook data file repair software restores data from such corrupt files by fully extracting it in a new PST.

Want to Repair and Export PST to Office 365?

Stellar Repair for Outlook Technician allows to restore corrupt PST files and export the recovered mailbox data to Office 365 through a single process. The software provides comprehensive value if you are facing Outlook mailbox data loss situation due to corruption and also planning to move your mailbox from local client to an O365 instance.

Is PST Crashing or Throwing Error Due to Large Size?

PST files can slow down as mailboxes gather more data and become oversized, especially when the auto-archival function is disabled. Such PST files lead to frequent crashing of Outlook client and throw errors, leading to poor performance and chances of mailbox data loss due to corruption. The software splits such large PSTs to optimize memory usage & performance while reducing the chances of corruption.

Do You Need to Compact Large PST File?

You may not prefer to split the PST for various reasons including the need to have access to data in a collated PST, sufficiently small PST that doesn’t require splitting, etc. For these scenarios, the software provides compaction utility which compresses the PST without the need to split it. Benefits such as optimal disk space usage and better performance accompany with Compaction feature as well.

More Awesome Features

Repair Severely Corrupt PST

Stellar Repair for Outlook Technician restores severely corrupt PST files & retrieves mailbox data in original form. The tool repairs PST files irrespective of the extent of damage and recovers complete mailbox items. ‘Find’ functionality in the software allows users to locate PST files stored anywhere on the system. It can also recover permanently deleted items, thus addressing mailbox information loss due to permanent deletion.

Advance Repair

Export PST Data to Office 365

The Outlook data file restoration software allows to directly export the recovered mailbox data to Office 365. The user simply needs to enter O365 account credentials in the login window, and the software seamlessly moves all mailbox data to Office 365. This is a great utility for users who are transitioning from local installation of Outlook client to the instance on Office 365. Also allows to save the extracted mailbox data in MSG, EML, RTF, HTML, PDF, DBX, & MBOX formats aside from PST.

Compact PST to Save Disk Space

The Outlook repair software recovers mailbox contents from corrupt PST file in a new PST that can be directly imported in Outlook client. Before saving the new PST, the software allows users to compress the file, thereby reducing disk space usage. PST file compaction feature also helps optimize memory use and reduces the chances of PST file corruption.

Advance Repair

Split PST to Reduce Size without Compaction

The Outlook recovery software allows to split the repaired Outlook PST into two or more smaller units and save them on the disk. This feature lets the user to split the PST file based on Email ID, Date or Size. PST file splitting functionality comes handy if you want to reduce PST size, facilitate mailbox organization based on set parameters, and reduce the chances of corruption.

Recover Outlook Calendar Entries

The Outlook repair tool allows recovery of Calendar entries as per four options – Day, Work Week, Week, and Month. The ‘Day’ option lists all entries in a particular day from the list of the scanned emails. The ‘Work Week’ option lists all the entries in a work week (Monday to Friday). The ‘Week’ option lists all the entries in a week (Monday to Sunday). The ‘Month’ option lists all the entries in a particular month.

Advance Repair

Recover Lost Outlook Contacts

Unlike most other Outlook recovery software, Stellar Repair for Outlook Technician can recover lost or deleted Contacts from PST. Once the scanning is completed, contacts of the user mailbox can be previewed by clicking the "Contacts" option. The software allows to import the contacts along with the repaired Outlook file. Contacts stored in the Personal Address Book (PAB) need to be imported manually.

Recover PST at Your Convenience

The software allows users to save and load the scan information to reinstate Outlook PST file repair process as per their convenience. To do so, use ‘Save Scan Info’ to save the scanned information as a DAT file and then use ‘Load Scan Info’ to access the saved scan data for continuing the repair process. The Save and Load Scan feature reduces the time taken to repair damaged PST, as users don’t have to scan the corrupt PST file again.

Advance Repair

Enhanced Preview for Accurate Recovery

The PST repair tool displays an enhanced ‘tree-like’ preview of recoverable mailbox components. In this latest version, the Preview feature has been enhanced to clearly display email body text and embedded hyperlinks aside from previewing calendars, tasks, journals, and contacts. The software previews permanently deleted items distinctly (in red color) to facilitate easy selection and recovery of mailbox items.

Product Tour for a Stellar Repair for Outlook Technician

Awards & Reviews

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pc mac


A very simple, easy to use and powerful Outlook recovery utility. The demo version helps to inspect the damaged PST file and make sure the recovery is possible.


Microsoft TechNet

This software includes some additional features like improved repair Outlook process, compression & Split of data files mechanism.

pc mac


A 'Technician' edition helps to repair Outlook file and reduce the size of my PST file. Easy to grasp UI.


Software fulfills the need of a good Outlook repair tool that can save the user’s precious data in each component of MS Outlook.

pc mac


I would recommend this PST repair tool to all who need to repair their corrupt PST files. Thumbs Up.

What customers say about our Stellar Repair for Outlook Technician Software?

I used this software to remove corruption from my PST. It not just repaired my corrupt Outlook PST file but also reduces the size of PST file by Splitting & Compacting.

Victor Jennings

It's a boon for Outlook users as it not only repairs my corrupt Outlook PST file in a smooth manner but also recovered my accidentally deleted mail from my mailbox too.

Rodney Wallace

I used this flawless PST Repair software last month at a client where they had lost a ton of company emails and then cleared the trash folder in mailbox. It brought back everything and they were impressed with the recovery from the beginning of time.

Parry Keith

Technical Specifications

About Product

Stellar Repair for Outlook Technician



Release Date

September, 2019


Version Support

MS Outlook 2019, 2016, 2013, 2010, 2007, 2003 & older versions


Technician, Toolkit

Language Supported

English, German, French, Italian, Spanish

System Requirements

System Requirements


Pentium Class

Operating System

Windows 10, 8.1, 8, 7, Vista


2 GB minimum (4 GB recommended)

Hard Disk

250 MB of Free Space


Start Using Stellar Repair for Outlook Technician Today With Our Free Trial.

*The free demo version of the Outlook repair tool repairs Microsoft Outlook file and shows the preview of the mails and other items. To save the repaired file, you need to buy the full version

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Knowledge Base & Guides

Product Related Articles

Stellar Repair for Outlook Technician edition allows saving of repaired PST directly into Office 365 format. Amongst the many formats like PST, MSG, EML, RTF, HTML, PDF, DBX, and MBOX, users have an additional option in Technician edition to save their data in Office 365 format. Learn more
Once you get your corrupt PST file repaired, you get multiple options to save the repaired mailbox contents. The 'Save Options' option includes PST, MSG, EML, RTF, HTML and PDF file formats. In addition to three newly added output file formats (i.e. DBX, Learn more
Microsoft Outlook stores all the data in a single file known as Personal Storage File (PST). In other words, it is a data file used for the storage of Outlook e-mail objects, such as contacts, attachments, appointments, contacts, journal, tasks, events, etc. Each version of Outlook has a different format. Learn more

Learn More



Follow these steps to open the repaired PST file in Outlook:

  1. Open 'Control Panel'.
  2. Double click 'Mail'. Select 'E-mail Accounts' to configure your email account in 'Mail Setup' dialog box.
  3. Close the dialog box after configuration and open MS Outlook.
  4. Now you have two options to view the repaired PST file. Either select 'Open > Outlook Data File' from 'File Menu' or, import the repaired PST file to MS Outlook.

You can repair the corrupt PST file and preview all the recoverable items with the free trial (demo) version of the software. To save the repaired file, or compress or split the PST file, you would need to buy the full version.


Yes, you can preview all the Tasks saved in the mailbox. The software provides the 'Task' option on the bottom left of the interface. Once you click the 'Task' option, all the tasks along with the subject and due date will get listed. This facilitates easy search for a particular task. You can also search for a particular task by subject or due date, if the list is long.

Note:This option is just below the Events option on the bottom left of the interface. The option lists all the notes saved by the user.

Journals - You can select the 'Journal' option from the interface. This will list all the journals with their subject and due date. You can select and preview any desired journal based on the subject. The list also has an option to search for a particular journal, either by subject or by start date, if the list is very long.


No, you don't have to rescan the corrupt PST file after registering the software. You can save the PST that was already repaired by using Demo version of the software.


Yes, you can repair Outlook components (emails, contacts, calendars etc.) on the latest Windows 10 (64/32 bit) PC without any trouble.


Stellar Repair for Outlook Technician edition can split large PST files in sizes of 5 GB, 10 GB, 20 GB, 30 GB, and 50 GB.


Yes, the Technician edition allows you to export the PST file data directly into Office 365. You can initiate the PST to O365 export process by selecting Office 365 as the option to save the repaired PST.