Despite being decades old, Office 2003 remains popular for specific reasons:
Would you like a step-by-step guide to installing and using instead? Microsoft Office 2003 - Portable Version full version
A portable version of a software application is a self-contained, executable package that can be run directly from a removable storage device, such as a USB drive, without requiring installation on the host computer. This allows users to carry their preferred software with them, using it on any computer that supports the portable version, without leaving behind any personal data or registry entries. Despite being decades old, Office 2003 remains popular
A powerful, open-source suite that can be installed as a true portable app via PortableApps.com. Despite being decades old