diff --git a/.gitignore b/.gitignore
index c61aff7..4e349a9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,10 @@
 # ignores logs of h5tojson, jsontoh5
 *.log
 
-# ignores output json of main.py
+# ignores any output of main.py
 output/*.json
+output/*.h5
+output/*.nxs
 
 # ---> Python
 # Byte-compiled / optimized / DLL files