CERT files: what are they and how do I open them?
Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.
.cert file type #1: Data file for Netscape certificate index
Files that have a cert extension typically hold certificate index files from the outdated Netscape Navigator internet browsing suite.
Further details:
A cert file, specifically in the context of Netscape, is a file that contains information about a digital certificate. This certificate is used to verify the identity of a person, device, or website on the internet. It is a part of the security protocols used in web browsers and other internet-connected applications.
The cert file contains information such as the certificate holder's name, the certificate's serial number, the expiration date of the certificate, a copy of the certificate holder's public key, and the certificate issuing authority's digital signature. Netscape and other web browsers use this file to establish secure connections over the internet, typically using SSL (Secure Sockets Layer) or TLS (Transport Layer Security) protocols. When you connect to a secure website (one that uses 'https' in its URL), your browser uses the information in the cert file to verify the website's identity and establish a secure connection.
Open file with:
Netscape Navigator
Older multi-platform web browser
.cert file type #2: Keychain Access data
Files with cert file extension are used by Keychain Access application for Mac OS X.
Further details:
The cert file extension is associated with the Keychain Access, a tool included to Apple Mac OS X (macOS) operating system that allows users to manage passwords and logins.
The cert file stores some kind of data used by Keychain Access.
Open file with:
Keychain Access
A password management tool for Mac
.cert file type #3: Open Virtual Machine Format certificate
Files with cert file extension are related to the Open Virtual Machine Format.
Further details:
The cert file extension is associated with the Open Virtual Machine Format an open standard for packaging and distributing virtual machines developed by VMware, Dell, HP, IBM, Microsoft and XenSource.
The cert file is used for integrity and authenticity checks.
Open file with:
VMware Workstation
VMware Workstation is application used to create computer virtual machines in one hosting operating system