You may choose to preserve it as an XLS document and work with it that way in some instances, especially if whoever you’re sending on to or back to has requested so, or, you might wish to convert an ...

Google Sheets Excel security In a Google Workspace update blog post announcing the news, the company noted that the conversion will give the new Google Sheets file client-side encryption.

Quick tip: Excel files can only be opened by Excel or Google Sheets whereas CSV files can be opened by any text editing program, such as Notepad or TextEdit.