diff --git a/cove_bods/process.py b/cove_bods/process.py
index d6eedf6..c641895 100644
--- a/cove_bods/process.py
+++ b/cove_bods/process.py
@@ -31,16 +31,16 @@
 logger = getLogger(__name__)
 
 
-def check_table_file_new(filename):
+def check_table_file_new(input_file):
     logger.info(f"{filename} {type(filename)}")
-    if get_file_type_for_flatten_tool(filename) == "xlsx":
-        data = pandas.read_excel(filename)
+    if get_file_type_for_flatten_tool(input_file) == "xlsx":
+        data = pandas.read_excel(input_file.upload_dir_and_filename())
         if "statementID" in data.head():
             return False
         else:
             return True
     else:
-        with open(filename) as file:
+        with open(input_file.upload_dir_and_filename()) as file:
             head = file.readline()
             if "statementID" in data.head():
                 return False
@@ -202,7 +202,7 @@ def process(self, process_data: dict) -> dict:
         # We don't know what schema version the spreadsheet is in. Use default schema.
         schema = SchemaBODS()
 
-        if check_table_file_new(input_filename):
+        if check_table_file_new(supplied_data_json_file):
             statement_id_name = "statementID"
         else:
             statement_id_name = "statementId"