diff --git a/.gitignore b/.gitignore
index b90c007..dc47ccf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
 # Ignore all .xlsx files
-*.xlsx
\ No newline at end of file
+# *.xlsx
\ No newline at end of file
diff --git a/sample_data/sample_detail_sheet.xlsx b/sample_data/sample_detail_sheet.xlsx
new file mode 100644
index 0000000..97f1c03
Binary files /dev/null and b/sample_data/sample_detail_sheet.xlsx differ