diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..fc621eb
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+
+input/
+output/
+logs/
diff --git a/sales-data.xlsx b/sales-data.xlsx
index f016f00..bd993d7 100644
Binary files a/sales-data.xlsx and b/sales-data.xlsx differ