It’s very frustrating when you have multiple applications open (such as Excel, PowerPoint, Word, Chrome, and IE) and you want to switch between Excel spreadsheets only. No matter how efficient you are, this can get on to your nerves in a few minutes. In this tip, let me show you how to handle this.
 
Use Control + Tab to toggle between open  spreadsheets only (keep the Control button pressed  while you press Tab button to switch)
That’s it! It’s this simple and will save you a lot of time