.PLUGIN File Extension
File Type 1Adobe Photoshop Plug-in
What is a PLUGIN file?
A PLUGIN file is a plugin used by Photoshop, an image-editing application. It stores content that extends the functionality of the default Photoshop application and is often used for adding image effects and filters, or support for a new raster image format. PLUGIN files may be created and sold by third-party developers. Several preinstalled PLUGIN files are stored in Photoshop installations within the Plug-ins directory.
File Type 2Mac OS X Plugin
.PLUGIN File Association 2
A PLUGIN file is a plugin that adds additional features or hardware support to programs in Mac OS X. It is often installed in a folder within the main Library folder, which includes the /Library/Internet Plug-Ins and Library/Printers/[Manufacturer] locations.
Plugin files may also be installed with various Mac OS X applications. These plugins are typically stored within the corresponding application folder.