Unlike modern "always-online" titles, the original Diablo 2 stores your Single Player progress locally on your machine. This opens up a world of possibilities for backup, sharing, and customization. Where to Find Your Diablo 2 LoD Save Files
Typically found in the installation folder, usually: C:\Program Files (x86)\Diablo II\Save
The Diablo 2 community has curated "Item Packs" and "Hero Packs" for decades. Here is why players use them:
These files store your automap data for specific difficulty levels. Why Download Pre-Made Save Files?
If you've played the campaign a hundred times and just want to experience the endgame, a "Level 90+ All Waypoints" save file is a lifesaver. How to Install a Downloaded Character
Always before importing new ones. Character files are easily corrupted if you move them while the game is running or if you use incompatible mods.
If you are looking for specific gear rather than a whole character, consider using a (like Hero Editor) to modify your existing save files safely.
Blizzard moved saves to the User folder to comply with modern Windows security: C:\Users\[Username]\Saved Games\Diablo II