Ways to Combine Multiple Outlook PST Files / Items into Single PST

Microsoft Office has been the wisest choice as an email client desktop application for large range of users. Being attracted by its efficient email management as well as other services including contact management, appointment scheduler etc., and users prefer to opt this service. As Outlook is a desktop based application, it maintains the entire mailbox items in a local PST file. Thus, PST file contains all mailbox items including emails, contacts, and calendars etc. for a particular user profile. However, the users can also choose to combine multiple items from different PST files into a single file and access them all together. Many users are in search of an effective solution that can merge PST files without any data loss. We aim to provide the most promising solution to combine multiple Outlook PST items into a single PST file. Using the measures, users can easily merge Outlook folders without facing any kind of difficulty.

Combine Multiple Outlook PST Files

Situations Where Users Find It Necessary to Combine PST Files

With the increasing dependency on email clients and their services, users always search for more features that can ease their task. Similarly, a number of scenarios have been observed where merging different Outlook items into a single file seem to be in demand. Some of the mostly discussed situations include:
  • "I have imported my Outlook PST file into Outlook 2010 account. However, the email inbox for that PST file is in different folder. I want to see the emails from that inbox in my existing inbox folder so that all emails can be easily handled within a single interface. How can I merge Outlook email folders into one folder?”
  • "Being an entrepreneur, I handle around fifty email accounts for different purposes. Each account maintains its contacts in respective PST file. It becomes difficult for me to look into contacts all together. I wish to merge Outlook contacts from different accounts into a single email account."
  • “Recently, I forgot the password for my Outlook account and was unable to recover it. I created a new Outlook profile to carry on my important emails. Luckily, I could crack password of my old account with help of my friends. Now, I have decided to find a way by which I can combine all Outlook items from new account into old Outlook PST file so that I do not miss any important emails. Kindly suggest me a reliable method to combine PST files without duplicates."
  • “Over many years, I have archived many PST files into local system. Now, I wish to combine archive PST files so that I can easily manage all the archived emails within a single account.”
Why to Consolidate PST Files?

The major reasons due to which the majority of users prefer to merge multiple PST items into one file are:
  • Faster Searching - It becomes easy to search for required Outlook item from a single PST file, rather than searching for data in every PST file individually. Thus, it saves time and provides faster searching and data retrieval.
  • Migrate PST files - While migrating to new version of Outlook, the users can efficiently combine the existing PST files into a single file. This file can be easily imported to access Outlook items.
Apart from these major reasons, users may also go for merging in order to free some space from memory or to manage all archive files together.

Merge PST Files using Manual Solution

The users can combine selective Outlook PST files using the in-built feature of MS Outlook. If small number of PST files is to be merged, then the following method can be followed to combine PST items efficiently:

Step 1. Login to Outlook application to access the account in which PST file needs to be combined.

Step 2. Navigate File >> More Items >> Outlook Data file to create a new PST file.

Outlook PST Merge

Step 3. Browse the location for saving new PST file and provide desired name to the PST file.

Outlook PST Merge

Step 4. Now, the newly generated PST file is visible on side pane of Outlook application.

Step 5. Click on File >> Open >> Import options.

Outlook PST Merge

Note: The location of Import option may vary depending on Outlook version being used. The above discussed location is applicable for Outlook 2010. Other Outlook version users may find Import option at:

Outlook 2003/2007:  File >> Import and Export
Outlook 2013/2016:  File >> Open & Export >> Import/ Export

Step 6. Under Import Wizard, select Import from another program or file option.

Outlook PST Merge

Step 7. Choose Outlook Data File (.pst) among the listed file formats to import file.

Outlook PST Merge

Step 8. Browse the location of PST file to combine PST items.

Outlook PST Merge

Tip: Make sure to check mark do not import duplicates option to avoid having duplication in the mailbox.

Step 9. Select the mailbox folder items from PST file, which need to be combined.

Outlook PST Merge

Step 10. Click on Finish to complete the process.

Note: The above discussed procedure needs to be repeated for every PST file whose data items need to be combined. Thus, if you wish to combine multiple PST files into single PST, it becomes quite cumbersome to repeat the process for every PST file individually. It can be said that this procedure can be opted for merging small number of PST items; not for combining large number.

Alternate Approach to Combine Multiple PST Files Quickly

In order to combine PST files including emails, contacts, tasks, notes, attachments, journals, and other Outlook data quickly and effortlessly, the users must go for automated PST Merge Software. The tool makes the merging task easy by its unique features:
  • Combine PST items: emails, contacts, calendar, tasks
  • Multiple merge options: Join PST/Merge Multiple PST/Merge Contacts
  • Remove duplicates from all PST files
  • Combine bulk PST files within minutes
Outlook PST Merge Software


Considering the importance and on-going demand to merge PST files into one, we have discussed the most promising solution to combine multiple Outlook PST items. An automated tool, PST Merge has also been suggested to perform faster and efficient processing. The users are advised to combine Outlook PST items and access them all together within a single account.

Ways to Combine Multiple Outlook PST Files / Items into Single PST Ways to Combine Multiple Outlook PST Files / Items into Single PST Reviewed by TechGlobeX on 11/05/2016 Rating: 5

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