CPCT file format description

Many people share .cpct files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cpct file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cpct files.

1 filename extension(s) found in our database.

.cpct - Compact Pro Archive

The CPCT archive files are related to Compact Pro. The CPCT file is a Compact Pro Archive. Compact Pro is a software data compression utility for archiving and compressing files on Apple Macintosh platform.

Compact Pro
Archive files
- / -
Compact Pro Archive related extensions:
Mathematica Package
LZ4 Compressed Data
Salt Package Manager Formula Package
GeneXpert Archive
Silva Media Archive
MSIX Upload Bundle Package

Naturally, other applications may also use the .cpct file extension. Even harmful programs can create .cpct files. Be especially cautious with .cpct files coming from an unknown source!

Can't open a .cpct file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .cpct file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cct, clct, cpc, cpdt, cpt, pct

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Atari ST Canvas Compressed Image
Corel Photo-Paint Image
Mail.dat Component File
Ccrypt Encrypted File
Cartesian Document Image
Casio WK-1800 Pattern Sequerncer Pattern

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.


If you have useful information about the .cpct file format, then write to us!

DataTypes.net >> CPCT file