How do I completely uninstall OneDrive from my MacBook Air?

Hi i want to uninstall onedrive from my Macbook Air , i could not see the icon on menubar , how could i remove this application completely from my laptop ??

it is not seen on my mac any where except on the applications , on trying to remove it , i find a message that it could not be removed because it is open . i am so tired going around with this matter , please help

[Re-Titled by Moderator]