A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hello
You would need to uninstall it on the old computer first. Go to Settings > Apps > Installed Apps, uninstall it from there.
Then on the new computer, Please go to https://www.office.com
Sign into the Microsoft account you used for the purchase. Click on Apps on the left.
Then on the upper right, click on "Install apps". This will now download the installer file. Once downloaded, click on the file to install. It will install the Desktop version of the apps for you then.