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.

A CPT file is a bitmap image created by Corel PHOTO-PAINT, a photo editing program that is part of the CorelDRAW Graphics Suite. It contains an image that supports layers, alpha channels, transparency, and other image effects. CPT files are used by amateur and professional photographers and graphic designers for storing touched up photos.

CPT file open in Corel PHOTO-PAINT 2019 The CPT file is the main file type created by PHOTO-PAINT. When you save your image, PHOTO-PAINT creates the CPT file to store the image and all the edits that have been applied. CPT files are similar to the more popular Adobe Photoshop .PSD files in this way. You can save a CPT file by selecting File → Save. The CPT file format is not supported by many image editors. However, you can export the file in PHOTO-PAINT to more widely supported image formats, such as .JPG, .PNG, .GIF, and .BMP. To export the CPT file select File → Export... and choose the format. The following applications are included in CorelDRAW Graphics Suite: CorelDRAW - A vector illustration and page layout program Corel CAPTURE - A single-click screen capture utility Corel CONNECT - A built-in content organizer

Audio file used by DVD authoring programs; contains audio, timecode, and header data; used in conjunction with video data to create DVDs.

NOTE: CPT files cannot be used to author Blu-ray discs. The .DTSHD format can be used instead.

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