Tips to open P7 file

Can't open the P7 file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open P7 files as well as a list of programs that support P7 files.

P7 file extension

File Name PKCS #7 Digital Certificate Format
File Category Web Files

The P7 file is supported on 3 operating systems. Depending on your operating system, you may need different software to handle the P7 files. Below is a summary of the number of programs that support and open the P7 file on each system platform.

Operating systems
  • 1
  • 1
  • 1
  • 0
  • 0
  • 0

What is P7 file?

The file in the P7 format belongs to the Web Files category. Web Files consists of 303 similar files. PKCS #7 Digital Certificate Format is supported by 3 operating systems. Although it can be found with greater or lesser success on any operating system, it will only be useful on Linux, Mac OS, Windows. Alternatively, you can use 2 other programs. You can use OpenSSL in case Apple Keychain Access cannot be used.

How to open P7 file?

The most common problem when using PKCS #7 Digital Certificate Format is that a specific P7 is not associated with the program. This causes the file P7 to open by system applications not designed for this purpose, or to display a message that there is no associated program. How to solve such a problem?

The first thing you should do is just "doubleclick" on the P7 file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Apple Keychain Access

The first step is to check if the computer has the Apple Keychain Access program installed. To do this, enter the name Apple Keychain Access into the system search engine. In the absence of an appropriate program, its installation in the vast majority of cases will fix the problem. Below you will find a list of applications that support P7 files.

Programs to open P7 file

Remember to download programs supporting P7 files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Apple Keychain Access with P7 files

If, despite the installed application, the P7 file does not start in the Apple Keychain Access application, you must create a file association. This option is available from the level of Properties of a specific file available in the context menu. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Using the "Change" button we can set the program to handle this type. The program should be visible in the window, otherwise it should be selected manually using the "Browse" button and the program installation directory should be indicated. The "always use the selected program ..." field will set the Apple Keychain Access application as the default for handling the P7 file.

Step 3. Update Apple Keychain Access to the latest version

If, despite the association of the Apple Keychain Access program with the PKCS #7 Digital Certificate Format file, the file still does not open, check the program version and possibly update it to the newest version.

Step 4. Check for the following problems with the P7 file

Of course, it may happen that despite the above steps, the file still does not work. File problems can be divided into the following:

The P7 file may be unusually small compared to the original file. This suggests truncating the P7 file contents when downloading or copying. Downloading the file again should fix the problem.
The operating system may be infected with a computer virus. A virus scan using an up-to-date antivirus program should fix the problem. Alternatively, you can use the scanners available online. The scan should cover the entire computer, not only the P7 file that we want to open. However, remember that not every infected P7 file can be recovered, so it is important to take care of regular backups.
This can happen especially when the program is dynamically developed and the structure of the P7 files changes over time. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
There can be many reasons for this. The repair method must be adapted to the type of file and damage. Some programs offer the ability to automatically repair P7 file corruption.
The program indicates that the file is encrypted or corrupted. The encrypted P7 files cannot be played on other computers than the one on which they were encrypted, they must be decrypted before using on another device.
Some operating systems do not allow file operations in certain locations, eg in system directories or directly on the system drive. These directories are write-protected to them and it's very hard to fix this problem. Copying the P7 file to another location will fix the problem.
This problem only occurs with more complex files. You may find that another program you are using is preventing you from working with the file. Running programs (including those in the background) should be verified. Sometimes you have to wait for the session to the file P7 to close. However, some background programs may block the P7 file while scanning. If the problem persists, restart the machine.