What is a .RUL File And How To Open It – Flexera Software

Table of Contents


Have you downloaded a file with .rul 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. Don’t worry! This article explains everything about the .rul file extension, how to open and work with it on various systems.

What is a .RUL file?

The .RUL file extension stands for InstallShield Rules File. The development of this file was done by Flexera Software. The format of this file is text, and it is a development related file.

What to know

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

How to open a .RUL file?

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

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

There are 4 simple steps to open the .rul file on Windows.

1. In the first step you need to download the Flexera InstallShield software. You will be using this software in order to open the file.

Step 2

Step 2: Locating your .RUL 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, after locating your file, right click on it and click “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 Flexera InstallShield software that you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .RUL file?

If you are still unable to open the .RUL file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .RUL file.ruleset – Microsoft, .rum – RAD Game Tools, .run – Linux Executable File, .run – Runscanner, .run – Human Head Studios. 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 .RUL file with the Flexera InstallShield program on Windows.