If you want to install or reinstall the office setup 365 or office setup 2016,then you have to follow the step by step process for downloading & Installing Office setup for PC or Laptop.
You should have An internet connection to access, download, install, or activate Office.
How to Download Office 365 or Office 2016 on PC?
Sign in to My Office Account
Visit : https://setup.office.com/
Sign in to account or create a new account
Enter the product key to redeem your product.
You have the choice to install 32 bit & 64 bit version of office. Choose according to your PC version.
How to Install Office 365 or Office 2016 on PC?
Click on Run or Setup or Save File (According to the browser.)
You will get an alert message Do you want to allow this app to make changes to your device?
After the installation is finished, you will get a message on display : You’re all set! Office is installed now.
You can see all apps in Click Start > All Apps.
How to Activate Office 365 or Office 2016 on PC?
Now you can start using all the office apps like Excel, PowerPoint,Word etc.
When you start an application you have to click Accept agreeing to the License terms.
The office might get activated automatically.
But if you see Office Activation Wizard, then follow the prompts to activate Office.
for more queries & information, visit: www.office.com/setup.