Go to Office.com/myaccount and Sign in using your Microsoft account

You can select Keep me signed in if you are the only user on this computer and want it to remember your Microsoft account details

NOTE: If you do not know these details, click Forgot password? to begin recovery of your account details

Select Install apps to

NOTE: This example above is for a Microsoft Office 365 Family subscription

If you have MacOS Sierra 10.13.6 or newer, select Install

Otherwise, select Download Office for versions 10.10 or 10.11

You will be prompted Do you want to allow downloads on “account.microsoft.com”?

Select Allow to continue the installation

You should then see the Microsoft install file downloaded, normally the file is something like Microsoft_Office_16.xx.xxxxxx_Installer.pkg.download

Select this file on the Dock

This will then start the download of the main Microsoft 365 Apps which you can see if you select Downloads

NOTE: This is normally at least a 1.5GB file so it can take a while with slow internet to download

Once the Microsoft Office installer has finished downloading, select the file to begin the install of Microsoft Office

Select Continue

Select Continue

Then select Agree to the terms of the software licence

If you want to change the installation location, select Change Install Location…

Otherwise, Select Install

You will then be prompted for your user account password which you need to type in, then select to Install Software

Now you will see it Writing files and Running package scripts with an estimated the installation time

When complete, you will see The installation was successful

Select Close

Then to clean up the install files, select Move to Trash

You can now use the Microsoft Apps Word, Excel, PowerPoint, OneDrive, OneNote & Outlook

The first time you use one of the apps, you will be prompted to Sign in with your Microsoft Account which is part of the activation process.