File extension .P7M
| Full Name | Developer | Category |
|---|---|---|
| Digitally Encrypted Message | N/A | Misc Files |
The P7M file extension is a digital container format used for creating digitally encrypted messages on the Microsoft Windows Operating System. The P7M format is based on the Cryptographic Message Syntax (CMS), which is used to create encrypted and signed messages governed by cryptography protocols such as PKCS #7, PKCS #10, and S/MIME. This type of file extension can be identified by its header information located in the first 8 bytes of the file, which is the acronym “BEGIN PKCS7”.
Usage and Contents
The P7M file extension is typically used to send signed or encrypted emails across the web securely between two parties. The main purpose of a P7M file is to provide encryption for data contained within the email message. The P7M file stores a digital signature, which can be used to verify that the content has not been tampered with or modified since it was created. The digital signature is typically composed of the sender's public key certification information and encrypted digital digest copy of the content inside the email. The email message content is stored in either a .txt, .doc, or .pdf file format and attached separately alongside the P7M file format in the same email transmission.
Interoperability
P7M files are not compatible with any Operating System besides Windows, therefore they cannot be read directly on systems such as Mac OS X, Linux, or Android. Cross platform interoperability can be achieved using similar file extensions such as gpg,.asc,.pfx,.p12,.cer,.sig, as well as utilizing third-party applications for connecting to other systems.
Programs for WINDOWS system
Programs for MAC system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .P7M) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .P7M extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .P7M file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .P7M extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .P7M extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .P7M file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .P7M file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .P7M file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .P7M file) will be extended to the maximum.
It is also good to check
- if the .P7M file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines
Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
Do you have suggestions for this website?
contact @ fileextension.info Use the Contact Form