To export your files to Excel rather than Numbers format, follow one of these steps:
Change the File Extension: At the end of your file's title, change the format extension to .xls. This will allow the file to open in Excel.
Save As Excel Format:
Open your .csv document in Numbers.
Go to File > Export To > Excel.
Follow the prompts to save your file in the Excel format.
This ensures that your file is properly formatted for Excel and avoids any compatibility issues.