diff --git a/File Formats/Code/Lua.md b/File Formats/Code/Lua.md
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--- a/File Formats/Code/Lua.md	
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-# *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/Serialised Table.md b/File Formats/Lua/Serialised Table.md
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+# *COS ?:* Lua Serialised Table
+
+## Quick information
+
+| Information |                           |
+| ----------- | ------------------------- |
+| Type        | Serialised Table          |
+| MIME        | `lua/table`               |
+| Extensions  | `.tbl`                    |
+
+## 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 serialised table files must contain a valid Lua table. A serialised table is valid if `textutils.unserialise` parses the *entire* contents of the file in to a table.
+
+It is not strictly necessary to use `textutils.serialise` when creating the file. For example, you can make another function which does the same but omits unnecessary whitespace. The only requirement is that it is *parseable*.
+
+### Example
+
+```Lua
+{
+	{
+		1,
+		2,
+		3,
+		4
+	}
+	"hello",
+	false,
+	nil,
+	["key"] = "value"
+}
+```
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