
Hi bharatbhushan more,
Thank you for Posting in Microsoft Community.
I understand how important it is for you to install Office.
Have you access the account.microsoft.com then sign in your Microsoft account with the subscription or the office license?
If not then please go to the account.microsoft.com
Then click on services then scroll down then you can click on install then it will download the office installer.
After that you need to install it. Just open the downloaded installer file in downloads.
Once its installed you must access any office apps like word, excel, PowerPoint.
You must then sign in your Microsoft account so that you can activate the office apps.
Please do get back to me so we can further troubleshoot on the issue.
Best Regards,
Bench
Microsoft Moderator