diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7c3fef0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.*mmpz
+*.mmpz.bak
diff --git a/.xdp-harmony2.mmpz.bak-fveY93 b/.xdp-harmony2.mmpz.bak-fveY93
deleted file mode 100644
index 20cbb9b..0000000
Binary files a/.xdp-harmony2.mmpz.bak-fveY93 and /dev/null differ
diff --git a/harmony2.mmpz.bak b/harmony2.mmpz.bak
deleted file mode 100644
index 25eb2ad..0000000
Binary files a/harmony2.mmpz.bak and /dev/null differ