diff --git a/File Formats/Code/Lua.md b/File Formats/Code/Lua.md
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index cda37e6..0000000
--- a/File Formats/Code/Lua.md	
+++ /dev/null
@@ -1,15 +0,0 @@
-# *COS 2:* Lua
-
-## Quick information
-
-| Information |                           |
-| ----------- | ------------------------- |
-| Type        | Plain text file format    |
-| MIME        | `text/lua`                |
-| Extensions  | `.lua`                    |
-
-## Technical details
-
-*This format is based upon [plain text](/File%20Formats/Documents/Plain%20Text.md) and as such technical details that apply to plain text also apply to this format.*
-
-Lua code files should contain valid, executable Lua code. These can either be self-contained programs, APIs or Lua otherwise loaded by a program.
diff --git a/File Formats/Lua/API.md b/File Formats/Lua/API.md
new file mode 100644
index 0000000..c752bc4
--- /dev/null
+++ b/File Formats/Lua/API.md	
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+# *COS ?:* Lua API
+
+## Quick information
+
+| Information |                           |
+| ----------- | ------------------------- |
+| Type        | Lua API                   |
+| MIME        | `lua/api`                 |
+| Extensions  | `.api`                    |
+
+## Technical details
+
+*This format is based upon [plain text](/File%20Formats/Documents/Plain%20Text.md) and as such technical details that apply to plain text also apply to this format.*
+
+Lua API files must contain valid Lua code which can be loaded by `os.loadAPI` without error. For more information, see the [wiki page](http://www.computercraft.info/wiki/Os.loadAPI) on APIs.
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