How to Fix “Outlook Data File Too Large to Open” Error?

Rollins Duke   
Published: May 10th, 2024 • 6 Min Read

Overview: In this write-up, you will get the complete details and a step-by-step guide to solving the “Outlook Data File Too Large to open” errors using safe and secure methods.

Most Outlook users face this error “Outlook Data File Too Large to open”. This occurs because the users continue to save all of the incoming data items in the same PST file. This may result in more PST files being created. If Outlook is slow to reply or if you are unable to do certain tasks, such as opening files, receiving attachments or emails, copying a folder, etc., you may have a problem with its performance.

Then you are certainly dealing with the issue of the file exceeding its maximum limit, which occurs when the file has a huge size. It is very necessary to have an understanding of how to fix the issue ” Outlook Data File Too Large to open of all versions 2019, 2016, 2013, 2010, 2007, and 2003.

Reasons Why Outlook PST File too Large in Size?

When attempting to retrieve mailbox emails, if the Outlook PST file shows an error message that says “PST file too large to open Outlook 2013, 2010,” then the problem is most likely because the PST file is too large and the body of the email not showing in Outlook. Due to the nature of the circumstance, there is a possibility that MS Outlook may display the following errors:

  • Error with the background sync.
  • Error while accessing the file.
  • Reported Error Number: 0x00040820
  • File xyz.pst has reached the maximum possible size.

How to Fix Outlook Data File Too Large to Open Manually?

To fix the Outlook.pst file with too large an error, users can use the inbuilt utility inbox repair tool, which is located by default in the Microsoft Office folder. To proceed with this process, follow the steps that are mentioned below:

  1. First, users have to open the scanpst.exe application.
  2. Then, click on the “Browse” button to choose the Outlook file which the user wants to crop.
  3. Thereafter, click on the “Start” button to initiate the dividing process.
  4. Then, choose the option “Make a backup of scanned file before repairing” and then select the destination folder from the drop-down menu.
  5. Finally, start the repair process by taping on the option “Repair” to fix Outlook Data File Too Large to open.

Drawbacks of Manual Methods

  • Above – described manual method is only good for the users only if users have a less amount of data items in the Outlook file. Users can repair it by consuming a large amount of time. Also, ScanPST.exe cannot fix major damages to Outlook files.
  • Only technical users can understand the manual procedures very clearly. But in the case of a home person, it makes confusion. That is if users are just started using MS Outlook, then they might not have sufficient knowledge. So, in this case, the automated methods help to perform the task effortlessly.

Also Read: How to Solve Outlook Slow to Receive Emails?

Direct Solution to Solve Outlook Data Files too Large to Open

To avoid all the limitations and simplify this process, we always recommend users use the best and most effortless technical solution. By using the BitRecover Outlook Split Tool users can easily accomplish this task without facing any issues. This tool will easily crop oversized Outlook files without installing MS Outlook. Crop various items like emails, contacts, calendars, and tasks to avoid reaching the Outlook file size limit.

This tool is compatible with all Microsoft Outlook 2019, 2016, 2013, 2010, and 2007 in smaller parts. It also runs smoothly on all versions of the Windows Operating System including Windows server versions. It provides the facility to save the resultant output to the desired location for easily finding the data.

Download for Windows

Download for Mac

Features and Benefits of Software

  • Crop Outlook Data File too Large – The best part of using the recommended software is that its user can easily crop Microsoft Outlook files in batch mode. Hence, the user does not have to select the Outlook files multiple times. The entire process of Outlook data files is too large to open ends in a single operation easily.
  • 100% Accurate and Fast Application – This is a versatile software that maintains the accuracy of all the data. Users can crop Outlook.pst files too large.
  • Standalone Application – This program allows users to crop Outlook data files without installing external applications. It is an independent tool that perfectly meets all the requirements to accomplish this task.
  • Save Output to the Desired Location – This is a risk-free application that allows users to freely choose the output location after completion of the cropping process.
  • Compatible with Windows OS – The Toolkit works on all Windows OS, including Windows 11, 10, 8.1, 8, 7, Windows Vista, Windows XP, Windows Server, etc.

How to Solve the Issue of Outlook Data Files too Large?

Follow these simple steps to overcome this solution effortlessly, also you can watch the video:

  1. First, install and run the software on your Windows operating system. Then read all the instructions carefully.


  2. After that, hit on the select files and folders button to select the required files, and then click on the Next button.

    files and folders

  3. The software shows all selected data in the software panel, from here select all PST items and click on the Next button.

    selected data

  4. Now, users have to choose the PST file saving option from the given drop list to solve Outlook Data File Too Large to open.

    saving option

  5. After that, check on the crop PST dialogue box and pick a required Outlook file size: 2 GB, 5 GB, or 10 GB.

    dialogue box

  6. Thereafter, select a destination path for the final output data with the help of software.


  7. Users can also select a required filter for applying multiple advanced settings to Outlook files.

    required filter

  8. Finally, click on the Convert button to solve the Outlook data file too large to open. This process will crop Outlook files into smaller parts.

    solve Outlook data file too large to open

  9. The tool will automatically open the destination location where all the new Outlook files are saved.

Final Conclusion

In this blog, we have discussed Outlook data files too large to open. As discussed, cropping large-sized Outlook files is the only best way to overcome this solution. We have mentioned both manual and technical solutions to overcome this situation. As discussed above, a manual solution is not a good option for users to accomplish this task. It is a waste of time, so it’s best to invest time in technical solutions to perform this task. It will become a hassle-free task for users.

If a user has some doubts, then they can use the demo version of the tool as well. After having satisfaction user can purchase the licensed version of the application.