A daily updated filename extension database!

CERT file extension

The table below provides useful information about the .cert file extension. It answers questions such as:

  • What is the .cert file?
  • What program do I need to open a .cert file?
  • How can the .cert file be opened, edited or printed?
  • How can I convert .cert files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Netscape Certificate Index

CERT file is a Netscape Certificate Index. Netscape Navigator was a proprietary web browser. It was the dominant browser in terms of usage share in the 1990s.
CERT format description not yet available
Category: Data files
Application: Netscape Navigator
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CERT aliases:
CERT related links:
CERT related extensions:
Netscape News Database

Netscape Cache Log

Other types of files may also use the .cert file extension.

🚫 The .cert file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cdrt, cer, cet, crt, ert, vert

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Broderbund PrintMaster Certificate
CorelDraw Template
MSI Cerius 2 Format Data
Hitachi COBOL2002 Data
Certificate File
MGL Avionics Enigma Route File
QT Vertex Shader

🔴 Can't open a .cert file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .cert file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .cert file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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