An AI query notes that NCH Doxillion does not support direct conversion of Apple Numbers (.numbers) files to Microsoft Excel (.xlsx) format. To convert Apple Numbers files to Excel, the recommended method is to use the Apple Numbers application itself:
- Open the Numbers file in Apple Numbers on a Mac.
- Use the menu: File > Export To > Excel.
- Save the exported Excel (.xlsx) file, which can then be opened in Microsoft Excel or converted further with other tools.