Convert WPD to 4 (Man Page)

The WPD file extension stands for WordPerfect Document, a proprietary format used by Corel's WordPerfect word processing software. Introduced in 1980 by Satellite Systems International, WPD files can contain formatted text, tables, charts, images, and other objects. Primarily used in business, academic, and home environments, WPD files offer a versatile solution for creating documents like letters, resumes, and newsletters. Over the years, WordPerfect has been acquired by Novell and later by Corel Corporation, ensuring its continued evolution and support.

The 4 file extension refers to Unix Section 4 Manual Pages, which document special files and device drivers. These files, such as "mouse.4", describe how devices interact with the Unix operating system and are accessed using the "man" utility. Historically, these manual pages have been a fundamental part of Unix documentation, helping users understand and manage system devices.