If your intention was to learn how to change existing in-game text files (like unit names or campaign descriptions) for modding purposes, you can follow this standard framework found in community forums like Total War Center :
Core Gameplay Pillars
Below is a scannable campaign introduction and game overview text designed in the style of the official franchise. ⚔️ Total War: The Iron Dynasty total war
: Maintain high "Imperial Harmony" to keep regional governors loyal and boost tax revenue. The Steppe Hordes If your intention was to learn how to