Upload interface.py

src/interface.py

@@ -425,7 +425,7 @@ class makeInterface:
                 # Step 6: Dynamically set column widths based on content
                 for idx, col in enumerate(dftosave.columns):
                     # Calculate the maximum length of the column content
-                    max_length = dftosave[col].fillna('').astype(str).map(len).max()
+                    max_length = dftosave[col].astype(object).fillna('').astype(str).map(len).max()
                     max_length = max(max_length, len(str(col))) + 2  # Adding extra space
                     worksheet.set_column(idx, idx, max_length, data_format)