diff --git a/.gitattributes b/.gitattributes
index 87fe483..81c49da 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -5,3 +5,5 @@
 *.stp filter=lfs diff=lfs merge=lfs -text
 *.STEP filter=lfs diff=lfs merge=lfs -text
 *.step filter=lfs diff=lfs merge=lfs -text
+*.FCStd filter=lfs diff=lfs merge=lfs -text
+*.FCStd1 filter=lfs diff=lfs merge=lfs -text