What is a .OST File And How To Open It – Microsoft (Visual Guide)

Table of Contents

Introduction

While downloading files, you might have downloaded a file with the .ost extension. It is possible that you know what the file does, but you are unsure on how to open it. Thanks to this easy guide you will be able to find out what .ost file extension is, how to open it and how to work with it.

What is a .OST file?

The file extension .OST stands for Outlook Offline Data File. This file extension belongs to the developer Microsoft. This file belongs to the binary format and it is a miscellaneous file.

What to know

There are currently 5 software that can open the .ost file on 1 platform.

How to open a .OST file?

Below we have written a comprehensive guide on how to open the .OST file on various operating systems.

How to open a .OST file on Windows (7, 8, 10)

We have written below an easy-to-understand guide on how to open the .ost file on Windows in 4 easy steps.

1. The first step is to download the Aryson OST Recovery software. You will be using this software in order to open the file. The other software that you can use is Microsoft Outlook 365, Remo Convert OST to PST, OEMailRecovery.com Outlook Recovery Toolbox, 4Team Corporation OST PST Viewer and Aryson OST Recovery.

Step 2

Step 2: Locating your .OST file

2. In the second step you need to locate the downloaded file. The file can be usually found in your /download/ folder if you don’t remember where you have downloaded it to.

Step 3

Step 3: Choose “Open with”

3. In the third step right click on your file and choose “Open with”.

Step 4

Step 4: Choose the software and click ok

4. In the fourth step, after clicking “Open with”, you should see the Aryson OST Recovery software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .OST file?

If you are still unable to open the .OST file, it might be because you are trying to open the wrong one. The .OST file extension is similar to other file extensions such as: .osu – peppy, .osx – PowerPC Executable File, .osz – peppy, .osz – OpenLP, .ot – theWord Bible Software. You might be trying to open one of them. Please recheck the file extension again.

Conclusion

In this article you have learned how to open the .OST file with the Aryson OST Recovery, Microsoft Outlook 365, Remo Convert OST to PST, OEMailRecovery.com Outlook Recovery Toolbox, 4Team Corporation OST PST Viewer programs on Windows.