What is a .TOP File And How To Open It – Missler Software (Visual Guide)

Table of Contents


Have you downloaded a file with .top extension, but you have never seen this extension before? You most likely know what the file is, but you might be unsure on how to open it. In this article we will explain what .top file extension is, how to open it and how to work with it.

What is a .TOP file?

The file extension .TOP stands for TopSolid Design Document. The development of this file was done by Missler Software. The file is a CAD software file.

What to know

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

How to open a .TOP file?

Below you can find an easy to understand, step-by-step guide to open the .TOP file on your operating system/device.

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

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

1. The first step is to download the Missler TopSolid software. You will be using this software in order to open the file.

Step 2

Step 2: Locating your .TOP 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 Missler TopSolid 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 .TOP file?

If you are still unable to open the .TOP file, it might be because you are trying to open the wrong one. The .TOP file extension is similar to other file extensions such as: .top – Gromacs. 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 .TOP file with the Missler TopSolid program on Windows.