What is a .OO3 File And How To Open It – The Omni Group (Visual Guide)

Table of Contents

Introduction

Have you came across a file with the .oo3 extension and you don’t know what it is? Perhaps you know what the file is, but you simply don’t know how to open it. Fear not, in this article we will show you how to easily open the .oo3 file in few simple steps on various systems.

What is a .OO3 file?

The file extension .OO3 is from OmniOutliner 3 File.This file extension was developed by The Omni Group. The file is a data related file.

What to know

There is currently 1 software that can open the .oo3 file on 1 platform.

How to open a .OO3 file?

Below we will show you a step-by-step guide on how to open the .OO3 file on various operating systems.

How to open a .OO3 file on Mac

We have written below an easy-to-understand guide on how to open the .oo3 file on Mac in 4 easy steps.

1. In the first step you need to download the The Omni Group OmniOutliner 4.5 software. You will be using this software in order to open the file. You can also use The Omni Group OmniOutliner 4.5 software.

Step 2

Step 2: Finding your .OO3 file

2. The second step is locating 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: Clicking “Open with”

3. In the third step, after locating your file, right click on it and click “Open with”.

Step 4

Step 4: Choosing the software to open your file

4. In the fourth step, after clicking “Open with”, you should see the The Omni Group OmniOutliner 4.5 software that you have downloaded. Choose your software and click on “OK”. That’s all, now you have opened your file on Mac.

Still cannot open the .OO3 file?

If you are still unable to open the .OO3 file, it might be because you are trying to open the wrong one. The .OO3 file extension is similar to other file extensions such as: .oo3template – The Omni Group, .ook – Arachne, .op – OpenPAT Report, .op2 – MSC Software, .op4 – MSC Software. You might be trying to open the wrong file, please recheck if you are trying to open the right file extension again.

Conclusion

In this article you have learned how to open the .OO3 file with the The Omni Group OmniOutliner 4.5 program on Mac.