In the context of your query, "proper paper" likely refers to instructions (like MLA or APA) rather than the game update itself. If you are trying to write a paper about this file or naming conventions:
: The .rar extension indicates a compressed archive that requires software like WinRAR or 7-Zip to open and extract. "Proper Paper" Meaning Hero.and.Daughter.Update.23.12.2019.rar
The string refers to a compressed update patch for the RPG Maker game Hero and Daughter+ , released on December 23, 2019 . File Details In the context of your query, "proper paper"
: The patch released on this date typically includes bug fixes, performance improvements, and sometimes new features or content. In the context of your query