diff --git a/File-Structure.md b/File-Structure.md
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index 0000000..1304d99
--- /dev/null
+++ b/File-Structure.md
@@ -0,0 +1,2 @@
+Every ARF file must start with ":arf" followed by a line break.
+An ARF file is divided into meta and body portions by a "---" (separator token).
\ No newline at end of file