A BZPLUG file is a plugin bundle file used by Corel AfterShot Pro, a professional image editor. It stores content, which may be multiple files, that extends the functionality of the AfterShot application. Some examples of capabilities added through the plugin are color grading tools, perspective correction, advanced vignetting, and nostalgiac classic film simulator.

You can install free and for-purchase plugins with AfterShot Pro's Plugin Manager. Simply double-click the AFZPLUG file to install the plugin. You can also drag and drop the BZPLUG file onto the Browse panel. Or you can select File → Install Plugin and choose tyour BZPLUG file. You must restart the AfterShot Pro application to complete the installation. NOTE: The BZPLUG file replaced the .AFZPLUG file on Windows and OS X but the "afzplug" extension is still used on Linux and all AfterShot Pro versions 2.4 and earlier.