Convert OPML to 8 (Man Page)

OPML, or Outline Processor Markup Language, is a file format utilized primarily for outlining data structures. Initially developed in 2000 by UserLand Software, OPML was designed to facilitate the exchange of outline-based information between different software applications. Its uses have expanded over time, notably in organizing RSS feed lists and managing hierarchical data. The OPML file extension denotes XML-based documents that offer simplicity and interoperability in transferring structured information across diverse platforms. In essence, OPML serves as a versatile tool in the realm of data organization and syndication.

The 8 file extension refers to Unix Section 8 Manual Pages, which document system administration commands, daemons, and hardware-related commands. These files are part of the Unix operating system's manual pages and are intended to be viewed using the "man" utility. Each 8 file is named after the command it describes, such as "shutdown.8" for the shutdown command. Historically, Unix manual pages have been a fundamental part of Unix documentation since the early 1970s, providing essential information for system administrators and users.