To install Microsoft Office on Windows 10 Pro, follow these steps:
Sign in to Microsoft 365 or Office: Visit office.com and sign in with your Microsoft account or work/school account associated with Microsoft 365. If you’re using Microsoft 365 operated by 21 Vianet, sign in at login.partner.microsoftonline.cn. For Microsoft 365 Germany, sign in at portal.office.de.
From the home page, select Install apps. If you set a different start page, go to aka.ms/office-install.
Choose Microsoft 365 apps to begin the installation. By default, the 64-bit version is installed unless you already have a 32-bit version of Microsoft 365 or Office installed. To switch between 32-bit and 64-bit versions, uninstall Microsoft 365 first (including any stand-alone apps like Project or Visio).
Best regards,
Aleksandr
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