: Most "free" downloads of paid software are bundled with malware, keyloggers, or trojans. Since Microsoft ended support for Office XP in 2011, there are no official security patches to protect you from vulnerabilities.

: This is the most popular open-source alternative. It is completely free, receives regular security updates, and can open/save the latest Microsoft Office file formats. You can find it at LibreOffice.org .

: It introduced "Smart Tags" and "Product Activation," the latter of which was a controversial but permanent shift in how software was licensed.

Released as the successor to Office 2000, Office XP (Version 10.0) was the first version of the suite designed to run on the Windows NT kernel, specifically Windows XP. It was a bridge between the classic computing era and the modern productivity landscape.