diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 000000000..1e9f8f7ca
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.dat filter=lfs diff=lfs merge=lfs -text
diff --git a/large_file.dat b/large_file.dat
new file mode 100644
index 000000000..613784621
--- /dev/null
+++ b/large_file.dat
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5af95f43df2fb218124b00f4431c19b1b7e35f6dc36f7e23d887c5c1e29f91c1
+size 11