How do I Combine Multiple Outlook PST files into one?

6 min read

Introduction: Managing multiple Outlook PST (Personal Storage Table) files can become cumbersome and inefficient. If you find yourself dealing with multiple PST files and want to streamline your Outlook data, combining them into a single PST file can simplify your email management. In this comprehensive guide, we will walk you through the step-by-step process of merge multiple Outlook PST files into one.

By following these instructions, you can declutter your mailbox and improve your productivity.

Why Consolidate Outlook Data Files?

Creating multiple PST files in Outlook is a common practice among users to manage their data effectively. However, there comes a time when consolidating these PST files becomes necessary. Here are some reasons why users opt to combine multiple PST files into one:

Size Limitations: PST files have size limitations, such as 2 GB for ANSI format and 50 GB for UNICODE format. When the PST file approaches its size limit, it can lead to performance issues and potential data corruption.

Data Protection: Combining PST files helps users prevent data loss or accidental deletion. By consolidating data into a single file, it becomes easier to back up and protect important information.

Accessibility: Users may need to access their Outlook data on different computers or devices. As, large PST file crashes Outlook while opening that's why consolidating PST files ensures seamless access to all their data without the need to manage multiple files.

Time and Effort Savings: Opening and managing multiple PST files can be time-consuming and tedious. By merging them into one, users save time and effort by having all their data in a single location.

Two Approaches to Consolidate Data files in Outlook

Manual methods and third-party solutions. In this article, we will explore both methods in detail, providing step-by-step instructions for each. Whether you prefer a manual approach or seek the convenience of an automated solution, we've got you covered.

The manual process for combining multiple Outlook PST files consists of two parts: creating a new PST file and importing the data into it.

Here's a step-by-step guide:

  1. Open Outlook and go to the Home tab. Click on New Items, then More Items, and select Outlook Data File.
  2. In the "Create or Open Outlook Data File" window, give a name to the new file and click OK. The new PST file will be highlighted in the navigation pane.
  3. Next, click on the File tab, then Open & Import, and choose Import/Export.
  4. The "Import and Export Wizard" will appear. Select the option "Import from another program or file" and click Next.
  5. From the list of file types to import from, choose "Outlook Data File (.pst)" and click Next.
  6. Click on the Browse button and select the PST file you want to import.
  7. If you don't want to import duplicate items, check the box "Do not import duplicates" and click Next.
  8. Select the folder you want to import from and make sure to check the box "Include subfolders". Choose "Import items into the same folder" option.
  9. Finally, click on the Finish button to complete the process.

By following these steps, you can manually combine multiple Outlook PST files into one, consolidating all your data into a single PST file.

Professional Solution to Combine Multiple PST Files into One

Advik PST Merge Tool plays a crucial role in combining multiple Outlook PST files into a single file efficiently and conveniently.

Here are the key roles and features of Advik PST Merge Tool:

Merge Multiple PST Files: The tool allows you to merge multiple Outlook PST files into a single PST file effortlessly. You can merge any number of PST files, regardless of their size or complexity.

Intuitive User Interface: The software is designed with a user-friendly interface, making it easy for both technical and non-technical users to navigate and operate the tool without any hassle.

Preserve Data Integrity: During the merging process, Advik PST Merge Tool ensures that all data items, including emails, contacts, calendars, notes, tasks, and attachments, are merged without any data loss or modification. It maintains the original folder structure and metadata of the merged PST file.

Remove Duplicate Items: The tool offers an option to eliminate duplicate items while merging multiple PST files. This ensures that your final merged PST file is free from duplicate emails, contacts, or other data, allowing you to maintain a clean and organized mailbox.

Filter and Selective Merge: Advik PST Merge Tool provides advanced filtering options that allow you to selectively merge specific folders or items from multiple PST files. You can choose to merge only the required data, saving time and storage space.

Fast and Efficient Performance: The software is designed to deliver fast and efficient merging of PST files. It utilizes advanced algorithms to streamline the merging process, ensuring quick completion without compromising the integrity of your data.

Compatibility and Support: Advik PST Merge Tool is compatible with all versions of Microsoft Outlook, including Outlook 2019, 2016, 2013, 2010, and earlier versions. It also provides reliable technical support to assist you in case of any queries or issues.

By utilizing the Advik PST Merge Tool, you can consolidate multiple Outlook PST files into a single file seamlessly, saving time, effort, and ensuring a well-organized mailbox with all your data in one place.


By following these step-by-step instructions, you can efficiently combine multiple Outlook PST files into one, simplifying your email management and improving organization. Whether you have multiple PST files from different accounts or backups, merging them into a single file reduces clutter and enhances productivity. Take control of your Outlook data by consolidating multiple PST files into one, providing a seamless and streamlined experience for managing your emails, contacts, calendars, and more.

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Contarino Rosario 2
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