diff --git a/Java/Classic_Docs/0.0.13a/Level_Format.md b/Java/Classic_Docs/0.0.13a/Level_Format.md
index dcf8708..7582d61 100644
--- a/Java/Classic_Docs/0.0.13a/Level_Format.md
+++ b/Java/Classic_Docs/0.0.13a/Level_Format.md
@@ -16,7 +16,8 @@ The level data is stored in **Big Endian** byte order.
 | Width | 2 | The width of the world (x direction) |
 | Height | 2 | The depth of the world. (z direction)[\[1\]](#1) |
 | Depth | 2 | The height of the world. (y direction)[\[1\]](#1) |
-| Blocks | 4,194,304 (256×256×64) | All the blocks in the world. YZX order (Y increments first) |
+| Blocks | ***Width***×***Height***×***Depth*** | All the blocks in the world. XZY order (X increments first)[\[2\]](#2) |
 
 ## Notes
 1. <a id="1"></a> Due to a bug in Minecraft Classic the `Height` and `Depth` values are swapped causing Height to be the Depth and Depth to be the Height.
+2. <a id="2"></a> The index can be calculated with `(y × Height + z) × Width + x`
diff --git a/Java/Classic_Docs/rd-132211/Level_Format.md b/Java/Classic_Docs/rd-132211/Level_Format.md
index f950c7f..e7bf0ea 100644
--- a/Java/Classic_Docs/rd-132211/Level_Format.md
+++ b/Java/Classic_Docs/rd-132211/Level_Format.md
@@ -8,4 +8,7 @@ The level data is stored in **Big Endian** byte order.
 
 | Name | Size (in bytes) | Description |
 |------|-----------------|-------------|
-| Blocks | 4,194,304 (256×256×64) | All the blocks in the world. YZX order (Y increments first) |
+| Blocks | 4,194,304 (256×256×64) | All the blocks in the world. XZY order (X increments first)[\[1\]](#1) |
+
+## Notes
+1. <a id="1"></a> The index can be calculated with `(y × 256 + z) × 256 + x`