Want an easier way to share your spreadsheet or workbook with non-Apple users? We’ll show you how to convert Apple Numbers to Excel on Mac, iPhone, and iPad.

Numbers has the ability to open Excel files so you can work on them. You can also export spreadsheets in Numbers so that they are compatible with Excel.

If you have left out hyphens, Excel does include automatic cell formatting options, allowing you to uniformly add hyphens to a selection of phone numbers, social security numbers or anything else ...

You can add a zero before a number in Google Sheets and Excel using this tutorial. You need to change cell formatting or use function.