Do the import steps or field mapping differ depending on the file format?

No, the import steps and the field mapping screen remain exactly the same regardless of the uploaded file’s format, whether it’s CSV, XLS, or XLSX.

When a file in XLS or XLSX format is uploaded, the system automatically converts it to CSV in the background before processing, and this conversion is completely invisible to the user — the import process and column mapping follow the exact same steps and interface, just as if the file had been uploaded in CSV format from the start.