Convert HWP (Hanword) to 4 (Man Page)

The HWP file extension stands for Hangul Word Processor, a document format used by Hancom's Hangul (now Hanword) software, popular in South Korea for creating and editing documents in Korean. Initially released in 1989, HWP files support text, graphics, and formatting, making them versatile for various document types. They are widely used by South Korean government agencies, educational institutions, and businesses. The HWP format is considered legacy, and Hancom has introduced HWPX as its modern successor, offering improved compatibility and XML-based structure for better interoperability.

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.