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format file cat

What is a cat file and how do I open a cat file?

CAT is a file used by the Windows operating system. It specifies that a group of files are from a verifiable source, and is used for security purposes and contains a digital signature, the catalog version, and an effective date; often used for verifying new software update files.

Recommended cat file download:
Microsoft Windows
Detail cat file extension information:
File Type: cat
File Format: Windows Catalog File
Primary Association: Auto CAD Files
Mime Type: application/vnd.ms-pki.seccat