diff --git a/unit05_key_exchange/lab/~$w_lab05.docx b/unit05_key_exchange/lab/~$w_lab05.docx
deleted file mode 100644
index c0b3998..0000000
Binary files a/unit05_key_exchange/lab/~$w_lab05.docx and /dev/null differ
diff --git a/crypto.ipynb b/z_jupyter/crypto.ipynb
similarity index 99%
rename from crypto.ipynb
rename to z_jupyter/crypto.ipynb
index c2a301c..8e55763 100644
--- a/crypto.ipynb
+++ b/z_jupyter/crypto.ipynb
@@ -1494,3 +1494,4 @@
  "nbformat": 4,
  "nbformat_minor": 5
 }
+