You've done the work by adding the data to Excel; Nekton can handle the notifications so you can move on to more important tasks. This integration, once active, will react to any new row you create on Excel, automatically sending out an email from Gmail with your specified message.
Microsoft's Excel is a spreadsheet application used by millions of users across the world. It is part of the Office ecosystem and is considered the industry standard for spreadsheets. Only files on OneDrive for Business (available with Office 365 and Sharepoint server) are supported at this time with Nekton.