What is a .P7S File And How To Open It (Simple Steps)

Table of Contents

Introduction

While downloading files, you might have downloaded a file with the .p7s extension. Perhaps you know what the file is, but you simply don’t know how to open it. That’s why you are here! We have made this guide for you to learn more about the .p7s file extension and how to open it.

What is a .P7S file?

The .P7S file extension comes from Digitally Signed Email Message. The file is a text related file.

What to know

There are currently 4 software that can open the .p7s file on 3 platforms.

How to open a .P7S file?

In this part of the article we will show you how to open the .P7S file on various operating systems.

How to open a .P7S file on Windows (7, 8, 10)

The .p7s file can be opened in 4 steps on Windows.

1. In the first step you need to download the PostBox software. You will be using this software in order to open the file. Other software that can be used in opening this file is: Microsoft Outlook 365, Mozilla Thunderbird and PostBox.

Step 2

Step 2: Locating your .P7S 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: 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 PostBox software that you have downloaded. Choose your software and click on “OK”. Congratulations! You have opened your file on Windows.

How to open a .P7S file on Mac

We have written below an easy-to-understand guide on how to open the .p7s file on Mac in 4 easy steps.

1. The first step is to download the PostBox software. This software will be used for opening the file. You can also use Apple Mail, Mozilla Thunderbird and PostBox software.

Step 2

Step 2: Finding your .P7S 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 right click on your file and choose “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 PostBox software that you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Mac.

How to open a .P7S file on Linux

There are 4 simple steps to open the .p7s file on Linux.

1. In the first step you need to download the Mozilla Thunderbird software. This software will be used for opening the file. You can also use Mozilla Thunderbird software.

Step 2

Step 2: Locate the .P7S 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: Hover over the “Open with” button

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

Step 4

Step 4: Open the file choosing the software

4. In the fourth step, after clicking “Open with”, you should see the Mozilla Thunderbird software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Linux.

Still cannot open the .P7S file?

If you are still unable to open the .P7S file, it might be because you are trying to open the wrong one. The .P7S file extension is similar to other file extensions such as: .p7x – Microsoft, .p7z – S/MIME Compressed Email Message, .p8 – Lexaloffle, .p8.png – Lexaloffle, .p96 – Win96 Database File. You might be trying to open one of them. Please recheck the file extension again.

Conclusion

In this article you have learned how to open the .P7S file with the PostBox, Microsoft Outlook 365, Mozilla Thunderbird programs on Windows, PostBox, Apple Mail, Mozilla Thunderbird programs on Mac and Mozilla Thunderbird software on Linux.