Mac:
Step 1: Click on the Finder icon
Step 2: Click on the Application folder
Step 3: Drag the Microsoft Office folder to Trash.
Step 4: Remove preference and license files and Office folder and Open library folder and move all com.microsoft files to trash
Step 5: Empty Trash, If there’s anything in Trash you want to keep, be sure to make a copy before you continue, Click Finder > Empty Trash.
Windows
Step 1: Open Programs and Features by clicking the Start button
Step 2: Click on Control Panel
Step 3: Next, click on the Programs option
Step 4: And then, Click on Programs and Features and follow the Microsoft Office instruction.