The File Extensions Database

.CPT File Extension

  • Developer by: Corel
  • Category: Raster Image Files
  • Format: Binary

What is an .CPT file?

.CPT is Corel Photo-Paint Image

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 X8

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
Programs that open Corel Photo-Paint Image
CorelDRAW Graphics Suite 2018
Corel PaintShop Pro 2019
Corel Presentations X9
File Type 2 Ccrypt Encrypted Archive
Developer by: Peter Selinger Category: Encoded Files

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.

File Type 3 Compact Pro Archive
Developer by: Cyclos Category: Compressed Files

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.

Programs that open Compact Pro Archive
Smith Micro StuffIt Deluxe 16
The Unarchiver
File Type 4 DTS Compact Audio File
Developer by: DTS Category: Audio Files Format: Binary

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.

Programs that open DTS Compact Audio File
Apple DVD Studio Pro
File Type 5 Pocket Slides Presentation
Category: Misc Files

Presentation created by Conduits Pocket Slides on a Pocket PC PDA

Programs that open Pocket Slides Presentation
Microsoft ActiveSync

How to solve problems with CPT files

  • Associate the CPT file extension with the correct application. On :
    Windows: Right click on any CPT file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.CPT files". Mac: Right click (or Ctrl-click) the CPT file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .CPT is Corel Photo-Paint Image. Because only the current version supports the latest CPT file format. Search, therefore, e.g. on the Corel manufacturer website after an available .CPT is Corel Photo-Paint Image update.
  • To make sure that your CPT file is not corrupted or virus-infected, get the file again and scan it with antivirus software.