File Extension Library


.COZ File Extension

  • Developer by: EFILive Limited
  • Category: Various data Files

What are .COZ files and how to open them?

Can't open .COZ file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .COZ file.

What is a .COZ file extension?

.COZ file extension is created by EFILive Limited. .COZ has been classified as Various data Files.

.COZ is EFILive calibration data

The coz file extension is associated with the EFILive, a tool for Microsoft Windows operating system that allows users to read and write data to car Engine Controller (ECM), Powertrain Controller (PCM), or Transmission Controller (TCM).

The coz file stores compressed calibration data for controllers.


How to open:

Use EFILive to open *.coz callibration data.

How to convert:

Conversion to other formats is not possible.

How to fix problems with .COZ files

  1. You need to update the application that you normally use to open .COZ files. Only the latest version of the software supports the current .COZ file format
  2. You need to check the .COZ file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)