diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..2e668de58
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.DS_Store 
diff --git a/1year/3trimester/.DS_Store b/1year/3trimester/.DS_Store
index 9e8b21433..701a6bdee 100644
Binary files a/1year/3trimester/.DS_Store and b/1year/3trimester/.DS_Store differ