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3 steps to open file with CPT extension

Usually solving problems with CPT file is simple – just install proper software and open the file. Read the guide and open CPT file now!

  1. 1. CPT File Extension
  2. 2. What is a(n) CPT file?
  3. 3. How to open CPT file?
    1. 3.1 Install a program that supports CPT files
    2. 3.2 Find and download proper software
      1. 3.2.1 Programs that support files with CPT extension
    3. 3.3 Check the CPT file for errors
  4. 4. Similar file extensions

CPT File Extension

File
  • File type Corel Photo-Paint Document
  • File developer Corel
  • File category Raster Image Files
  • File popularity rating
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What is a(n) CPT file?

The Corel Photo-Paint Document (CPT) file format is an image editing tool developed by Corel Corporation. It is used to create and edit bitmap images such as photos, logos, illustrations, diagrams, charts, and web graphics. The CPT file format stores layers, objects, settings and special effects that allow you to edit the image without affecting the original.

The CPT file format is supported by several Corel Graphics software programs including Photo-Paint X3, Photo-Paint 12, and Painter 12. It is a proprietary format and not compatible with other image formats such as JPEG, GIF or PNG. It also supports exporting to other file formats such as PNG, JPEG, or BMP.

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How to open CPT file?

There could be multiple reasons for which the system does not support given file. In the case of CPT extension, it is probable that none of the installed programs support given file type. Therefore, user should undertake the following steps

Step 1: Install a program that supports CPT files

If an application that supports CPT files is installed on user’s system, but is not used to open such files by default, right-click on the file icon and choose "Open with" option from the menu. Next, select the proper application and check the "Always use the selected application to open this kind of files" box. The system will store this information in its registry and use the selected program to open files with CPT extension by default.

Hint for Mac OS users

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For Mac OS users the procedure is analogous – open the file menu by right-clicking on the CPT file and choose "Information" option and select "Open with program" option. From the submenu select an application and click on "Change all" button.

Step 2: Find and download proper software

Inability to open CPT files may also be related to the lack of any application that supports given file being installed on the system. Should that be the case, user needs to download and install one of the following applications. Once installed, the system will automatically associate newly installed application with CPT files. If this step fails, see step 1.

Programs that support files with CPT extension

Windows programs
Windows
MAC OS programs
MAC OS

Step 3: Check the CPT file for errors

Sometimes, although relatively rarely, steps 1 and 2 might not lead to expected results. There can be several reasons for such situation to occur:

  • CPT file has been downloaded from the internet but for some reason it is incomplete. In such case the file should be re-downloaded and opened again.
  • Structure of given CPT file could be corrupted and as such the program is not able to open the file
  • Storage medium on which the file was stored is damaged
  • It is important to ascertain that the icon representing given file is not a shortcut a related CPT file no longer present in the location to which the shortcut points
  • If the user account has restricted access privileges it is advised to contact the system administrator or an IT expert

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