WPS Office is a legitimate free suite for Windows that is highly compatible with Microsoft Office. The free version shows ads but is otherwise fully functional. Do not download cracked versions; use the official free version from wps.com.

You might wonder, why Office 2013 and not 2016, 2019, or 2021? There are several reasons:

"Preactivated" typically means that the software has been activated or has a mechanism to bypass the normal activation process that Microsoft requires to use its products. This can be through various methods, some of which may be legitimate (like a volume license) and others that are not (like using a crack).