You can export a Numbers spreadsheet as a PDF, or in Excel, CSV, or Numbers ’09 formats. Exporting to another format is useful when you’re sharing the spreadsheet with others who may use different software from you.
When you export, Numbers creates a copy of your spreadsheet in the specified file type. Any changes made to the exported version don’t affect the original.
Choose File > Export To > [file format].
Select the format you want to share (Numbers or PDF, for example), then specify settings, which differ depending on file type:
Image quality: For PDFs, the higher the image quality you chose, the larger the file size of the exported copy.
Require password to open: For PDF, Excel and Numbers ’09 file formats. To protect the file with a password, select the checkbox, then enter the requested information.
Click Next, type a name, enter one or more tags (optional), choose where to save it from the Where pop-up menu, then click Export.