Files with p7s extension can be typically found as certificates in PKCS #7 Signature file format which is used to provide a consistent way to send and receive secure MIME data.
Software that open p7s file
P7S file extension - PKCS #7 signature
What is p7s file? How to open p7s files?
File type specification:
File extension p7s is associated with the S/MIME (Secure/Multipurpose Internet Mail Extensions) that is used to provide a consistent way to send and receive secure MIME data.
Based on the popular Internet MIME standard, S/MIME provides the following cryptographic security services for electronic messaging applications: authentication, message integrity and non-repudiation of origin (using digital signatures) and privacy and data security (using encryption).
MIME types used:
application/pkcs7-signature
application/x-pkcs7-signature
application/keychain_access
Updated: April 15, 2024
The default software associated to open p7s file:
Company or developer:
Microsoft Corporation
Microsoft Outlook is a professional e-mail management tool and personal information manager distributed with the Microsoft Office suite. Outlook integrates the e-mail application, calendar, task manager, contact manager, and note-taking into one application.
Company or developer:
Apple, Inc.
Apple Mail is e-mail client distributed with Apple Mac OS X operating system. Apple Mail supports POP3, SMTP, IMAP mail protocols as well as Microsoft Exchange.
List of recommended software applications associated to the .p7s file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open p7s file, edit p7s file, convert p7s file, view p7s file, play p7s file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with p7s file - PKCS #7 signature
Click on the software link(s) for more information. Suggested software applications use p7s file type for internal purposes and/or also by different way than common edit or open p7s file actions.
Microsoft Windows:
Main software associated with p7s file by default:
Microsoft Outlook
Other suggested software:
Mozilla Thunderbird
Apple macOS / Mac OS X:
Main software associated with p7s file by default:
Apple Mail
Other suggested software:
Mozilla Thunderbird for Mac
