File type | Digitally Encrypted Message |
Developer | N/A |
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What is a P7M file?
Files with the .P7M extension contain encrypted message contents and potential attachments in accordance with the PKCS#7, which stands for Public Key Cryptography Standards no. 7. The files contain S/MIME type data, which stands for Secure/Multipurpose Internet Mail Extensions, a secure version of MIME.
Sending messages in this format prevents unauthorized access to them, as opening such messages usually requires entering a password – namely a private key that matches the public key assigned to the message. This format is, for example, used to transfer sensitive medical or financial information.
Program(s) that can open the .P7M file
Mac OS
How to open P7M files
If you cannot open the P7M file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports P7M among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the P7M file can be found in the table. Now just download and install the appropriate application.
Possible problems with the P7M format files
The inability to open and operate the P7M file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Digitally Encrypted Message file. Below is a list of possible problems.
- Corruption of a P7M file which is being opened
- Incorrect links to the P7M file in registry entries.
- Accidental deletion of the description of the P7M from the Windows registry
- Incomplete installation of an application that supports the P7M format
- The P7M file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the P7M file.
- Drivers of equipment used by the computer to open a P7M file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the P7M file should operate with your programs without any problem. If the problem with the P7M file has not been solved, it may be due to the fact that in this case there is also another rare problem with the P7M file. In this case, the only you can do is to ask for assistance of a professional staff.
Similar extensions
.aawdef | Ad-Aware Definitions Format |
.abr | Adobe Photoshop Brush Format |
.ac$ | AutoCAD Undo Info Format |
.acc | DR DOS - ViewMax Format |
.acl | Microsoft Office Automatic Correction List |
.acs | Microsoft Agent Character Structured Storage Format |
.ad | After Dark Screen Saver Format |
.add | Microsoft Dynamics AX Developer Documentation Format |
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.P7M) you have two ways to do it. The first and the easiest one is to right-click on the selected P7M file. From the drop-down menu select 'Choose default program', then click 'Browse' and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the P7M file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
P7m Mac Os
![Mac Mac](/uploads/1/1/8/6/118604366/704275633.png)
Many files contain only simple text data. It is possible that while opening unknown files (e.g. P7M) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.
P7m Mac Os X
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