diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..5cd46bbe
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,4 @@
+* text=auto
+testdata/largefiles/* -text
+testdata/largefiles/README.txt text=auto
+*.bat text eol=crlf