What is a .OSU File And How To Open It – peppy (Easy Steps)

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Have you downloaded a file with .osu extension, but you have never seen this extension before? It is possible that you know what the file does, but you are unsure on how to open it. That’s why you are here! We have made this guide for you to learn more about the .osu file extension and how to open it.

What is a .OSU file?

The .OSU file extension stands for Osu! Script. The developer of this file extension is peppy. The file has the text format, and it is a game related file.

What to know

There are currently 3 software that can open the .osu file on 1 platform.

How to open a .OSU file?

In this part of the article we will show you how to open the .OSU file on various operating systems.

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

To open the .osu file on Windows, please follow these 4 easy steps.

1. The first step is to download the ArrowVortex software. You will be using this software in order to open the file. You can also use osu!, ArrowVortex and Microsoft Notepad software.

Step 2

Step 2: Locating your .OSU 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. After choosing the “Open with” option, you will have an option to choose the ArrowVortex software you have downloaded. Choose your software and click on “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .OSU file?

If you cannot open the .OSU file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .OSU file.osx – PowerPC Executable File, .osz – peppy, .osz – OpenLP, .ot – theWord Bible Software, .ota – Nokia. You might be trying to open the wrong file, please recheck if you are trying to open the right file extension again.


In this article you have learned how to open the .OSU file with the ArrowVortex, osu!, Microsoft Notepad programs on Windows.