CMPLIB file format description

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

1 filename extension(s) found in our database.

.cmplib - Altium Designer Component Library

The CMPLIB data files are related to Altium Designer. The CMPLIB file is an Altium Designer Component Library. Altium Designer is a software package which allows electronic circuit designers to design, draw and simulate electronic circuit boards.

Altium Designer
Data files
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Altium Designer Component Library related extensions:
AirWatch Inbox Secure Content
Adobe RoboHelp Folder Contents
Adobe Premiere Waveform Data
Adobe InCopy User Dictionary
Adobe InDesign User Dictionary
Macromedia Fireworks Style Library

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

Can't open a .cmplib 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.

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

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