WPG, WordPerfect Graphics File (.wpg)
The WPG Vector image file format
The WPG format can contain both vector and bitmap image data and supports up to 256 colors. Another feature of WPG files is that they can include Encapsulated PostScript (EPS) information as well. Files with teh WPG extension are commonly used for clipart images which can be embedded in text documents.
Technical details of WPG files
The WPG file format is commonly used by WordPerfect. Other Corel applications, such as PaintShop Pro and CorelDRAW Graphics Suite, support this file format as well. Inkscape and Perfectspot are some of the open source programs that support WPG outside of the Corel program family.