.CPT File Extension

File Type:
Compact Pro Archive

Having trouble opening .cpt extension? Don't panic! This page explains what cpt files are as well as suggests programs you may use to open cpt files. You can download these programs through this page.

What is a CPT file?

Cpt file extension has Compact Pro Archive file type, developed by Cyclos, which is associated with the "compressed files" category.

Сompact Pro is a tool for file compression that runs on Mac OS Classic (Mac OS 9 and prior). Compressed files are packed in archives with the CPT extension. The compression method used in Compact Pro assures fast archiving with a decent compression rate. However, it has become obsolete, and Compact Pro is no longer developed.

To learn how you can open the given file, read the information below.

cpt file icon
File Type:
Compact Pro Archive
Compressed Files

How to open CPT file?

Double click the cpt file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .cpt extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the cpt extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the cpt file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open CPT files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the cpt file as well. Download Universal File Viewer for your OS.

Download for Win
Secure download
Download for Mac
Secure download