Convert WN to 4 (Man Page)

The WN file extension is associated with WriteNow, a word processor developed by NeXT for the original Apple Macintosh and NeXT workstations. WN files are text documents that often contain instructional manuals, worksheets, resumes, memos, or letters. WriteNow was released in 1984 and provided a simple, efficient way to create and edit text documents on early personal computers.

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.