.cpt

File Type 1 Corel Photo-Paint Image IconCorel Photo-Paint Image
File Format Proprietary (Corel)
Usage Open manually
Rank ★ ★ ★  Common
Description

Image created or saved with Corel PHOTO-PAINT, a photo editing program included with the CorelDRAW Graphics Suite; supports multiple layers and various image effects.

Open With
Windows

IconCorelDRAW

IconCorel PaintShop Pro

IconCorel Presentations

macOS

IconXnViewMP

Updated January 26, 2010
File Type 2 Generic IconCcrypt Encrypted Archive
File Format Proprietary (Peter Selinger)
Usage Open manually
Rank ★ ★ ☆  Average
Description

File archive encrypted with ccrypt, a utility for encrypting and decrypting files and streams; based on the Rijndael cipher and uses an asymmetric encryption algorithm; requires a password to open.

Ccrypt is developed as an open-source program and is available for Mac, Windows, and Unix systems.

Open With
Windows

Iconccrypt

macOS

Iconccrypt

Unix

Iconccrypt

Updated 2007
File Type 3 Compact Pro Archive IconCompact Pro Archive
File Format Proprietary (Cyclos)
Usage Open manually
Rank ★ ☆ ☆  Uncommon
Description

File archive compressed with Compact Pro, a file compression program for Mac OS Classic (Mac OS 9 and earlier); uses a fast and efficient compression algorithm.

Development of Compact Pro stopped in the late 1990s and the program is no longer supported.

Open With
macOS

IconSmith Micro StuffIt Deluxe Mac

IconThe Unarchiver

IconCyclos Compact Pro (Mac OS Classic)

Updated 2007
File Type 4 Generic IconPocket Slides Presentation
Rank ★ ☆ ☆  Uncommon
Description

Presentation created by Conduits Pocket Slides on a Pocket PC PDA

Open With
Windows

IconMicrosoft ActiveSync

Updated 2007
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