Convert 4 (Man Page) to UOT

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.

The UOT (Uniform Office Document) file extension is used for documents created in the Uniform Office Format (UOF), an open standard developed for Chinese office productivity applications. It uses an XML format to describe the document and is compressed to reduce file size. UOT files can be opened by OpenOffice and its variants. The format is similar to the OASIS OpenDocument format but is not compatible with it.