diff --git a/.gitattributes b/.gitattributes
index 04e5684a..2877ece6 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -6,6 +6,9 @@
 *.c text
 *.h text
 *.txt text
+*.py text
+*.pl text
+*.lua text
 
 # Declare files that will always have CRLF line endings on checkout.
 *.sln text eol=crlf
@@ -13,8 +16,10 @@
 *.vbs text eol=crlf
 *.vcxproj text eol=crlf
 *.vcxproj.filters text eol=crlf
+*.rtf text eol=crlf
 
 # Denote all files that are truly binary and should not be modified.
 *.png binary
 *.gif binary
 *.dll binary
+*.xls binary