diff --git a/tests/files/placeholder_test.csv b/tests/files/placeholder_test.csv
new file mode 100644
index 00000000..7ec100d7
--- /dev/null
+++ b/tests/files/placeholder_test.csv
@@ -0,0 +1,4 @@
+Phid;Model;Manufacturer;Serial Number;Id device Supplier;Pallet;Info
+a123;Vaio;Sony;12345678;TTT;24A;Good conditions
+a124;Vaio;Sony;12345679;TTT;24A;Good conditions
+a125;Vaio;Sony;12345680;TTT;24A;Good conditions
diff --git a/tests/files/placeholder_test.ods b/tests/files/placeholder_test.ods
new file mode 100644
index 00000000..cc6b1fc5
Binary files /dev/null and b/tests/files/placeholder_test.ods differ
diff --git a/tests/files/placeholder_test.xlsx b/tests/files/placeholder_test.xlsx
new file mode 100644
index 00000000..61cc9fc6
Binary files /dev/null and b/tests/files/placeholder_test.xlsx differ