How to Fix “Outlook Data File Too Large” Issue? Solved
Are you also an Outlook user who is facing issues with large Outlook PST file size? If yes, then you are not alone. This write-up is going to explain all the best and safest methods to resolve Outlook data file too large issue easily.
Before starting the process, let’s check if it’s possible to fix the Outlook file too big issue. Yes, we can fix the file size by deleting unwanted items, by archiving old emails separately, using the built-in Import/Export option, or splitting your large data file into smaller parts.
The Outlook application is a popular choice among users and experts to send and receive emails and manage their data. And Outlook creates different sizes of PST files to store data, and this size depends on the Outlook version, like:
If your PST file exceeds this size, then it will become larger and is at high risk of losing emails and corruption. More information about the causes of large Outlook data files is mentioned below:
Why Should Users Fix the “PST File Too Large” Issue on Time?
If your data file has crossed the size limit, then you will face these “Outlook PST file too large to open” issues in your Outlook account:
- Corruption: If your data file crosses the size limit, then it may be corrupted and damaged, which means you can’t open or recover data. So, fixing this issue on time is required.
- Slow Outlook Performance: Also, your Outlook will take a long time to start, freeze, or not respond, and features will not work properly.
- Delay in Receiving Emails: You will receive emails in your Outlook account.
- Outlook Crashes: Yes, this is a common issue you will face again and again in Outlook, which disturbs your daily tasks and performance.
Safest Way to Fix “Outlook Data File Too Large” Issue
Upcoming manual methods contain multiple drawbacks and risks, so if you haven’t installed Outlook and don’t want to waste time with various manual steps, then simply download the PST Splitter Tool.
This is the best and safest way to fix the “Outlook file too big” issue without deleting or managing data. It will split large PST file into smaller parts for better management. Download the free version to understand the licensed version. More features and working steps are given below:
How to “Outlook Data File Exceeds Limit” without Deleting?
- Download the utility and install it on your system.

- Import your desired single or multiple files and folders using the Add Files and Add Folders option.

- Locate the path from your machine and use the Open icon.

- After that, choose any path for your output smaller files.

- Choose any Split Options as per your demand and choice.

- Now, after selecting the desired settings, hit the “Next” button.

- And the live process will start on the screen to fix the “Outlook data file too large” issue.

Why Expert Tool for Outlook PST File too Large to Open Issue?
- This software allows users to fix issues by dividing large files by size, date, folder, ID, year, and category.
- Also, it supports all types of PST files exported from Outlook 2021, 2019, 2016, 2013, 2010, and older versions.
- You can easily divide your large data files in bulk at the same time without having any restrictions or limitations.
- It gives you two options to import single or multiple files and folders in one process without repeating the same procedure.
- This amazing solution works without Outlook installation and internet connection, which means it doesn’t save your data in the tool’s environment.
How to Fix the “Outlook data file too large” Issue Manually?
After knowing the expert solution, let’s know the manual methods to resolve this issue. We are going to mention three manual methods to fix the “Outlook file too big” issue. All methods are explained below one by one:
#1: Archive Old Emails
If your Outlook mailbox contains old emails and items that are important to you but you can’t keep them in the mailbox, you can archive them to solve “Outlook data file too large” issues:
- Launch your Outlook.
- Head to the “File” tab >> “Info” >> “Tools” options.
- Select the “Archive…” and choose the “Archive this folder and all subfolders” option.
- After that, select the folder according to your requirement.
- Choose the date range, like archive emails older than.
- Select the location to save the archived file.
- Lastly, click on the “OK” button to fix the “Outlook data file too large” issue.
#2: Delete Unwanted Emails, Attachments & Items
Deleting unwanted items or emails from the Outlook mailbox is a basic and simple way to decrease the Outlook PST file size. Follow the upcoming steps:
- Open your Outlook account.
- Head to the folders that contain unnecessary emails.
- Select the unwanted attachments and email.
- And choose the “Delete” icon.
- After normal deletion, head to the “Trash” folder.
- Finally, empty your “Trash” folder to fix the “Outlook data file too large”.
#3: Use Import/Export Option to Solve “Outlook File Too Big”
This is the built-in feature in Outlook, which allows users to export selective data into a PST file. So, we will export data separately:
- Select the “File” tab in Outlook.
- After that, choose the “Account Settings” >> “Account Settings” options.
- Select the “Data File” tab and choose the “Add” icon.
- Create an Outlook file and name it, and choose the “OK” button.
- Now restart Outlook.
- Again, choose the “Open & Export >>“Import/Export from the “File” tab.

- Select the “Outlook Data File (.pst)” option.

- Select the folders that you want to export.

- Browse the location to save the output data file.

- Finally, select the “OK” button to fix the “Outlook data file too large” issue.
Why Experts Don’t Choose Manual Ways Over Solutions?
- The Outlook application must be downloaded and connected to the proper account.
- The second method contains a high risk of accidentally deleting while deleting the unwanted emails and items.
- Users have to follow multiple steps to fix the “Outlook data file too large” issue.
- Also, these manual methods don’t provide advanced filters to export selective data.
- Manual methods don’t support bulk data files.
Final Comment
Here we have solved the query on how to resolve the “Outlook file too big” issue using the top 3 manual methods and one alternate solution. For limited data files, you can resolve the issue by archiving data, deleting unwanted emails and other items, and exporting data from the connected profile.
And if you don’t have Outlook installed and have multiple large data files, then you should go for the alternate solution to fix “Outlook data file too large”. Because this is the reliable way to resolve the problem without losing details. You can even contact us through live chat support.