diff --git a/.gitignore b/.gitignore
index c0df636..3797fd4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,4 +13,5 @@ tmpclaude-*
 *workspace*
 *.png
 data/
-*.xlsm
\ No newline at end of file
+*.xlsm
+*.xlsx
\ No newline at end of file