What is a COV file?
The .COV extension most commonly represents a Fax Cover Page File used by Microsoft software, such as Windows Fax and Scan. These files store the text, graphics, and layout instructions for the first page of a digital fax transmission.
Because the .COV extension is a short abbreviation, it is used by several unrelated programs. It can be a code coverage data file used by developer testing tools like BullseyeCoverage, PHPUnit, and Coverity. In agriculture, it can serve as a coverage map data file for hardware from Ag Leader Technology and Case New Holland. Additionally, it can contain covariance matrix data for Gnuplot or MATLAB. In rare cases, a .COV file might be a user document encrypted by the Coverton ransomware.
How to open COV files?
To open a Fax Cover Page File, you can use the Fax Cover Page Editor included with Microsoft Windows. For developer code coverage files, you must use the specific testing framework that generated the data, such as PHPUnit.
If you do not know which program created your specific file, viewer.online/cov can analyze .COV files to identify the exact format and creator software. The platform allows you to inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
Because .COV has multiple possible meanings, viewer.online/cov is useful for identifying, inspecting, and understanding .COV files without installing software or dealing with compatibility problems.