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Summary: Outlook has the most advanced features to export the OST files into PST. But when importing OST files to Gmail, we must take the third-party GSMMO tool. In this article, we will delve into the ways to import OST files to Gmail. The process is lengthy and time-consuming. If you don’t want to go lengthy process, then take the help of Kernel Import OST to Gmail tool.

Instant Solution

Try automated tool Kernel Import OST to Gmail to import multiple OST files to Gmail account. It supports OST files from all Exchange Server versions.

MS Outlook is the most trusted and widely used email client worldwide. Outlook saves all its data in the PST and OST, which are the two prominent file formats with POP and IMAP accounts. In Outlook, OST stores a copy of all the data files that you can access offline without having a server connection. You can even use Outlook offline and when Outlook connects with the server, it will apply all the changes you have worked on. However, OST files get corrupted for many reasons. So, migrating OST files to Gmail is a better and more convenient way for users. In this post, we will be looking for ways to import OST files to Gmail.

Why import OST files to Gmail?

Outlook is the most significant email client nowadays, but many users use Gmail instead of Outlook because of its advanced features. Here, we have mentioned some reasons to import OST files to Gmail:

  • When you want to switch your email client from Outlook to Gmail.
  • When users want to take a backup of their OST files in Gmail.
  • OST files are prone to corruption.
  • Everyone can easily access Gmail in remote areas.
  • Outlook has a technical UI, whereas Gmail has a friendly UI.
Manual methods to convert OST files to Gmail

Outlook has a built-in method to migrate OST files to PST and then synchronize that PST file to Gmail. Let’s dive into the conversion of OST files to PST:

Method 1: Import OST to Gmail manually

It is not possible to import OST files to Gmail directly; hence, converting them to PST format is considered better. To start the initial process, you have to locate your OST files.

Step 1: Locate your OST files

It’s the most important thing to start the importing process. Most of the time, OST files are not at that location. So, knowing the accurate location of OST files is essential to import them into PST format.

  1. Click File > Account Settings > Account Settings.

    Account Settings

  2. Click on the Data Files tab, select any OST file, and click on Open File Location option.

    Select and Open File Location

    Note: Generally, OST files can be found here irrespective of the Outlook version- C:\Users\user\AppData\Local\Microsoft\Outlook.

Step 2: Export your OST file as to PST

Now, when you know your OST file location, it’s easy to export them in PST files. PST files are accessible for migrating, sharing, and backing up. Let’s dive into the straightforward steps to export OST files to PST.

  1. Open MS Outlook, click on the File tab > Open & Export > Import/Export.
  2. In Import and Export Wizard, select the Export to a file option and hit Next.

    Import and Export Wizard

  3. The Export to a File dialog will pop up, select Outlook Data File (.pst) option and tap on Next.

    select v

  4. Select the email account and it’s item that you want to export as a PST file and hit Next.

    select OST file to export in PST

  5. Click on the Browse option to select the destination folder where you want to save the PST file and hit Finish.

    Finish the process to save OSt in PST file

    Congratulations! You have successfully converted an OST file to PST. Now we will explore ways to import this file to Gmail.

Step 3: Import PST to Gmail via. G Suite Migration for Microsoft Outlook (GSMMO) tool

G Suite Migration for Microsoft Outlook (GSMMO) is a desktop tool developed by Google that allows you to import all your Outlook data into Gmail. With this tool, you can effectively migrate the PST file in just a few steps.

  1. Search for G Suite Migration for Microsoft Outlook in any browser and download the application.
  2. Launch the G Suite Migration for Microsoft Outlook application
  3. Enter the login credential and proceed to Continue.
  4. login G Suite Migration for Microsoft Outlook

  5. Next, you will be asked with a message that GSMMO wants to access your Google account. Scroll down and click on the Allow button.
  6. Allow to access Google account

  7. If everything goes well, then you should see a confirmation message as shown below:
  8. confirmation message

  9. It will open a new dialog window. Select From the PST file(s) option from the drop-down menu and click Next.
  10. select the PST file

  11. You will be taken to where all outlook PST files are saved. In step 1, if you have saved your converted PST file to a different location, paste that location’s file path in the Address bar.
  12. The file is now imported, click Next to proceed.
  13. PST file imported

  14. Adjust the migration settings as required. Once done, click on Migrate.
  15. Adjust the migration settings

  16. It will initiate the migration process. Depending on the size of your PST file, the process might take a while. Once done, you will be prompted with a message of successful migration.
  17. successful migration done

  18. Log-in to your Gmail account and look for the newly imported PST file in the left pane.

    New PST file created

    Congratulations! You have successfully migrated your Outlook PST file to Gmail.

Direct Method to Import OST Files to Gmail

The best way to directly import OST files to Gmail would be a third-party tool. Kernel Import OST to Gmail is an excellent tool for this kind of migration. It is an all-in-one tool that can recover permanently deleted Outlook mailbox items, maintaining the hierarchy during migration. It is also possible to save the OST to PST, MBOX, PDF, DBX, EML/MSG, and more. One important feature is that it can directly export the OST data to live Exchange Server and webmail clients such as Gmail, Yahoo, AOL, and more. Additionally, it can easily repair corrupt OST files that have become inaccessible, conversion.


We have discussed all the possible ways to import OST files to Gmail. The manual method is time-consuming, and only technical experts can do this. So, to save time and effort, we have also mentioned Kernel Import OST to Gmail utility. This tool has various useful features that set it apart from its counterparts. Hence, we recommend the user to try it for smooth migration experience.

Kernel Import OST to Gmail