I encountered a weird edge case. When a line-break is present in the imported Excel file's column names, (auto-)mapping fails. I suggest applying some basic string sanitization to avoid failed mappings. Our import file contains a column named "Tray\nAnzahl" (so it has a line-break. The CSVbox matching array looks like this: ["Tray Anzahl", "Tray"] and fails. We've added "Tray\nAnzahl" to the matching array but it would still make sense to handle such cases on CSVbox's side 💪