No other or older Office applications should be installed on your system. If you have issues installing Office, try the following:
Run as administrator: Right-click on the installation file > "Run as administrator."
Disable antivirus: Temporarily disable your antivirus program and try installing again.
Check your internet connection: A stable connection is important.
Uninstall and reinstall Office: Remove existing Office installations and reinstall the package.
Update system: Update your operating system.
Check storage space: Ensure sufficient storage space for installation.
Look for error messages: For specific errors, consult the Office support page or contact Microsoft support.