diff --git a/Design-Doc%3A-%60level%60-tool.md b/Design-Doc%3A-%60level%60-tool.md
index 3a5ec7f..b635e9d 100644
--- a/Design-Doc%3A-%60level%60-tool.md
+++ b/Design-Doc%3A-%60level%60-tool.md
@@ -68,6 +68,17 @@ While the above format contains the graphics, this contains the nametable settin
 ### .lvc Format (Level Collision Map)
 The collision map is just an array of 8-bit unsigned integers laid out with the same tile dimensions as your visible layers. 0 is a free area, while 1 is a collision area.
 
+### .spt Format (Sprite Table)
+The Sprite Table contains a mapping of sprites to tile indices, as well as their tile dimensions and number of animation frames. 
+```
+2 Bytes: Number of Sprites
+For (Number of Sprites):
+   1 Byte: Sprite ID
+   1 Byte: Tile index location (in tiles.bin)
+   1 Byte: Sprite Width (tiles)
+   1 Byte: Sprite Height (tiles)
+```
+
 ### .ecs Format (Entity-Component System)
 This file contains the entity-component system defined by the [attributes](#entity-component-system) set in Tiled Map Editor's object layer(s).