CDEV file format description

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

1 filename extension(s) found in our database.

.cdev - Macintosh II Control Panel

The CDEV other files are related to Classic Mac OS. The CDEV file is a Macintosh II Control Panel. The Macintosh II is a personal computer designed, manufactured and sold by Apple. The Classic Mac OS seems to be no longer supported.

Classic Mac OS
Other files
- / -
Macintosh II Control Panel related extensions:
BrailleNote Apex Upgrade Installation File
DigiGuide Add-in
KDE Desktop Screensaver
SCAR Divi Macro Script
AMC Graphic Workshop Thumbnail
YobiDrive Link

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

Can't open a .cdev 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 .cdev file extension is often given incorrectly!

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

cde, cded, cdv, cev, crev, dev, sdev

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

CADKEY Dynamic Extension
E-Sword Devotional Data
DEViANCE Group Abbreviation
Railway Operation Simulator Development Data
SEL Compressed Event Report
Apple System 7 Control Strip Module

Operating systems 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 .cdev file format, then write to us! >> CDEV file