Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
HI Rezasarfi,
Thank you for choosing Microsoft Community.
If you have not registered the product key with a Microsoft account, then you may refer to the following link to sign in or create a Microsoft account to download and install Office 2013 suite.
https://officesetup.getmicrosoftkey.com/?origin=HA102830243
If the product key is already been associated with a Microsoft Account, then you may login directly to the My Account page from where you may install Office 2013.
http://office.microsoft.com/myaccount
Note: Ensure to login to the My Account page on Office.com with the Microsoft account you used during the registration of the product key for Office 2013.
I hope the above information helps. Let us know if you need further assistance.
Thank you.