What is a .IAF File And How To Open It – Microsoft (Simple Steps)

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Have you came across a file with the .iaf extension and you don’t know what it is? It is important to know how to open this file – in order to be able to work with it. Don’t worry! This article explains everything about the .iaf file extension, how to open and work with it on various systems.

What is a .IAF file?

The file extension .IAF is Outlook Internet Account File. This file extension belongs to the developer Microsoft. The file has the binary format, and it is a settings related file.

What to know

There is currently 1 software that can open the .iaf file on 1 platform.

How to open a .IAF file?

Below we will show you a step-by-step guide on how to open the .IAF file on various operating systems.

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

Below you can see a visual guide on how to open the .iaf file on Windows in 4 easy steps.

1. The first step is to download the Microsoft Outlook 365 software. You will be using this software in order to open the file. You can also use Microsoft Outlook 365 software.

Step 2

Step 2: Locating your .IAF file

2. The second step is locating the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

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 Microsoft Outlook 365 software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .IAF file?

If you are still unable to open the .IAF file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .IAF file.iam – Autodesk, .ias – Professional Wireless, .ib – Embarcadero Technologies, .ib2 – IncrediBots, .ib3 – IncrediBots. You might be trying to open one of them. Please recheck the file extension again.


In this article you have learned how to open the .IAF file with the Microsoft Outlook 365 program on Windows.