In the Products Module, users can export existing product information into a spreadsheet. Simply click the Import/Export dropdown menu and select one of the Export options.

Export Products

Select this option and click the Export Products button. This will generate a spreadsheet with ALL product information, including inactive products.

Export Listing SKUs

Select this option and then choose to export all Listing SKUs for a single channel or export all Listing SKUs for ALL channels at once.

Select from the Sales Channel dropdown menu options to either select a specific channel or choose the "All Channels" option. Then click the Export Listing SKUs button.

Export Vendor Products

Select this option and then choose between exporting your Vendor Products by Vendor or for all Vendors at once.
 
See this article for more detailed information on the contents of each spreadsheet.