Convert TEX to TEXI

TEX is the file extension for TeX documents, a typesetting system used for creating professional-quality documents, primarily in academic and technical fields. It was developed by Donald Knuth in the late 1970s to improve the appearance of mathematical and scientific papers. TeX is known for its precision and ability to handle complex formatting. LaTeX, built on top of TeX, simplifies document creation by providing a set of macros and templates for common document structures, making it easier to produce consistent, high-quality output.

The TEXI file extension, short for Texinfo, is a documentation format used primarily by the GNU Project for creating software manuals. Developed by Richard Stallman and Bob Chassell, it organizes content into a book-like structure and allows a single source file to generate both online and printed documentation. TEXI files are widely used in open-source projects and are recognized by their TEXI extension.