If you are preparing an essay to go into such an archive, ensure it follows standard APA 7th edition student paper guidelines : Student Paper Setup Guide - APA Style
A RAR file is a data container used to bundle and compress multiple files into a single, smaller package for easier sharing. To access an essay within such a file, you must first extract it using third-party software like WinRAR or 7-Zip. Key Requirements for an APA Style Essay