While you can find "pre-activated" Microsoft Office 2013 Pro Plus files on sites like MediaFire, downloading them poses significant security, legal, and functional risks Security and Legal Risks What happens if you download a cracked program? - Kaspersky
What is in this file? he wondered. A keylogger stealing his banking info? A trojan turning his work PC into a botnet? Or was it just a clean copy of software that shouldn't be free?
For the "Lifestyle & Entertainment" user—who may not be technically savvy—MediaFire feels safe because it looks like a standard cloud drive. You click, you wait 10 seconds, you download an ISO or a RAR file. No seed ratios. No DMCA paranoia (until the link dies).
While downloading a pre-activated version of Microsoft Office 2013 Pro Plus from Mediafire may seem like an attractive option, it is not recommended. The risks associated with using a pre-activated version of the software, including malware and security risks, outweigh the benefits.