Open CRT file

CRT files: what are they and how do I open them?

crt file icon 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.

.crt file type #1: Internet security certificate

Files with crt suffix can be usually found as Internet security certificates in a well known and supported standard.

Further details:

File extension crt is frequently used for Internet security certificates. Server, web site transactions, logins, webmail and connections are usually secured with a SSL Certificate.

One of the most used certificate formats is the X.509v3. The standard known as ITU-T X.509 (formerly CCITT X.509) or ISO/IEC 9594-8, which was first published in 1988 as part of the X.500 Directory recommendations, defines a standard certificate format. The certificate format in the 1988 standard is called the version 1 (v1) format.

MIME types used:
application/x-x509-ca-cert
application/pkix-cert
application/keychain_access
application/x-x509-user-cert

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Microsoft Edge

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Safari

A default web browser integrated to Apple Mac OS X

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Opera browser

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Firefox

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Google Chrome

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Opera browser for Mac

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Firefox for Mac

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Google Chrome for Mac

Mac version of the popular web browser from Google

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Opera browser for Linux

Linux version of popular web browser

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Firefox for Linux

Firefox for Linux is popular free web browser

.crt file type #2: Commodore emulator data

A crt file extension is related to emulators for Commodore computers. A crt file stores image of tape or disk.

Further details:

The crt file extension is associated with some emulators of Commodore computers like, CCS64 for Microsoft Windows etc.

The crt file stores image of a cartridge, tape or disk from Commodore computers.

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CCS64

A shareware Commodore 64 emulator

.crt file type #3: Oracle terminal settings information

A crt file extension is related to the Oracle terminal settings information files.

Further details:

The crt file extension is associated with the Oracle Database, a relational database management system and some other apps developed by Oracle.

The crt file stores terminal settings information data.

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Oracle Database

An object-relational database management system from Oracle

.crt file type #4: Unix Crontab data

A crt file extension is related to the Unix and Solaris operating systems. A crt file stores schedule of cron entries.

Further details:

The crt file extension is associated with the Unix based operating systems.

cron is a Unix, Solaris utility that allows tasks to be automatically run in the background at regular intervals by the cron daemon.

These tasks are often termed as cron jobs in unix , solaris. Crontab (CRON TABle) is a file which contains the schedule of cron entries to be run and at specified times.

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Unix

A multi-tasking operating system for various platforms

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Solaris

A Unix certified operating system for workstations and servers

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.crt" has the file extension "crt". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.