This post demonstrates how to deselect all the cells without changing the active cell in excel
The features is available in Excel 2016
Pic is showing the selected range with active cell as A1 and we want to deselect all and get back to the original state where A1is the active cell as show in pic 2
Pic 1
Pic 2
To deselect all without changing the active cell, press keyboard shortcut Shift+Backspace
Hope this helped.