Update app.py

app.py

@@ -226,7 +226,7 @@ if selected_app == "2) Merge CSVs":
             if len(uploaded_files) > 1:
                 dfs = []
                 for file in uploaded_files:
-                    df = pd.read_csv(uploaded_file)
+                    df = pd.read_csv(file)
                     
                     if "questions" in df.columns and "answers" in df.columns:
                         df = df[["questions", "answers"]]