.CAT File Extension
- Developer by: Microsoft
- Category: System Files
- Format: Binary
What is an .CAT file?
.CAT file extension is created by Microsoft. .CAT has been classified as System Files. The format of .CAT file is Binary.
.CAT is Windows Catalog File
File used by the Windows operating system; specifies that a group of files are from a verifiable source; used for security purposes and contains a digital signature, the catalog version, and an effective date; often used for verifying new software update files.
Windows catalog files help to suppress multiple trust dialog popups for new software component downloads. Since CAT files can identify a trusted source, the user can choose to "Always trust content" from the software distributor. Then, future downloads from the software distributor that use a CAT file are trusted and do not require a trust popup window.
File Type 2 Advanced Disk Catalog Database
Contains a catalog of data from various media types including hard drives, network drives, floppy disks, optical discs (DVDs, CDs, etc.), ZIP and JAZ disks, etc.; used for keeping track of information stored within a collection of media