diff --git a/.gitattributes b/.gitattributes
index bb2e57ffbb3d..c825eb2621ee 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,4 +1,13 @@
 *.doc binary
+*.ppt binary
+*.xls binary
 *.sdw binary
 *.jcs binary
+*.docx binary
+*.ppts binary
+*.xlsx binary
+*.odp binary
+*.ods binary
+*.odt binary
+*.rtf diff
 schema/*/* export-ignore