How to Compress OFT File Size without Losing Quality?

Published On

January 28th, 2026

Reading Time

6 Minutes Reading

Looking for a quick and easy way to compress OFT file sizes without losing quality? If yes, you are not alone. In this guide, we are going to provide you with a trusted and safest way to compress large Outlook OFT files.

OFT files are widely used for email marketing, business communication, and automated responses. But these files quickly become large due to embedded images, heavy formatting, headers, and more. OFT files that are too large create a lot of problems that can be very frustrating.

In this blog, we will walk through the most effective and safe way to compress large OFT file sizes. So, keep reading the blog if you’re having trouble with oversized OFT files.

Why OFT Files Become Large?

OFT files include logos, banners, and more. If these image files are large in size and uncompressed, they can easily increase the OFT file size.
Most OFT templates are created from HTML email designs. Excessive styles, duplicate codes, and more can increase your OFT file size.
When images and icons are directly embedded in OFT files, they make the file size larger.
If the file was saved multiple times or created from another large template, the size may increase.

Tips to Compress OFT File Size

Here are the most common tips to reduce large OFT file size:

Compress and optimize the images.
Clean and modify the HTML code.
Avoid embedded images when possible.
Reduce the use of complex formatting.
Remove hidden elements and trackers.
Avoid embedded attachments.

All-in-One Solution to Compress Large OFT File Size

Many online solutions are available that allow you to reduce the OFT file size. Most of them contain several limitations and cannot give you the exact result you want. For this reason, we have developed an amazing and effective program namely 4n6 Email Compressor Software. It is the most reliable, fast and complete method that can help you reduce the OFT file size without facing any kind of issues. This software has a very simple user interface. You will not face any kind of problems while using the software.

Quick Tip: The software comes with the facility of a free demo version. Therefore, it is recommended that you download and use the trial version first. It will help you test the features of the software without investing anything.

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Simple Steps to Reduce Outlook OFT Files

Install the program properly, run it, and click the Open button.
From the given list, choose Email Data Files option.
Select OFT files option and browse Outlook OFT files or folders.
Click the loaded OFT files and preview before compression.
Click Compress and Save and choose required saving option.
Check the OFT file loaded on the left panel.
Choose the location where you want to get compressed OFT files.
Select Compress Inline Images option and choose Compression level.
Now, keep attachments intact or select the required option like Remove Attachments, and more.
From the given advanced filters, please enable the required ones.
Click the Save button to begin the compression of Outlook OFT files.

Note: You cannot compress and export your Outlook OFT files in demo version. It is available in licensed version only.

Benefits of Using 4n6 OFT Compressor Software

Compress Files in Bulk: With this powerful tool, it is possible to compress multiple Outlook OFT files at once. This feature is really helpful in saving time and effort.
Remove Attachments: The software allows you to remove attachments from Outlook OFT files which can help you reduce the size of OFT files.
Maintains Other Properties: While compressing the OFT file size, the application maintains the quality. It will not affect the content and other properties of the OFT file.
Compress Embedded Images: With the help of this software, it is possible to compress embedded images from your OFT files which helps reduce the size of OFT files.
Remove Headers: Headers play a very important role in increasing the Outlook OFT file size. This 4n6 program successfully supports removing headers and compressing OFT file size.
Standalone Application: This application is completely standalone. You don’t have to install a supporting program to compress OFT file size without losing quality.
Windows Compatible: You can download, install, and run this OFT Compressor Software on Windows 11, Windows 10, Windows 8.1, and earlier versions.

Also Read:
How to Reduce vCard File Size without Losing Quality?
How to Reduce Size of Thunderbird Profile?

FAQs

Q: What is an OFT file?

An OFT is an Outlook template used to create pre-designed email messages with saved text, layout, and images. It quickly creates consistent emails without rebuilding designs every time.

Q: Does compressing images really reduce size of large OFT files?

Yes, large, uncompressed images are one of the main reasons for large OFT files. Using the recommended 4n6 software helps reduce the size of OFT files by compressing images.

Q: Is there any recommended OFT file size?

No there is no strict size limit for an OFT file.

Q: How to check if my OFT files containing hidden attachments?

Open your OFT file and look out for email attachments in header. Remove the unnecessary files and resave the file to reduce size.

Q: Are there any online solution to compress OFT file size without losing quality?

Yes, there are some online solutions available that support reducing the OFT file size. But for accurate and effective results, it is recommended to use a reliable professional software.

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Conclusion

In the above content, we have explained information about how to compress OFT file size without losing quality. Here, we have explained the reasons for large OFT files and the best way to reduce the size of large OFT file. The recommended 4n6 software is tried and tested. You can feel free while using the software to compress OFT file size.

So, free download the software now and take a test drive.

Thanks for reading.

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