You can carry the entire Office 2003 suite on a USB stick and run it on any Windows PC.
Sources used for information: [1] General knowledge on Microsoft Office 2003 functionality. Microsoft Office 2003 Portable Download WORK
If you have already downloaded or executed a portable Office 2003 file from an untrusted source, take immediate action to secure your computer: You can carry the entire Office 2003 suite
The Microsoft Office 2003 Portable Edition is a specially designed version of the software that can be run from a portable device. This edition allows users to access their favorite Office applications, including Word, Excel, PowerPoint, and Outlook, without installing the software on the host computer. The portable edition is particularly useful for users who: This edition allows users to access their favorite
Office 2003 runs blistering fast on modern systems and is extremely light on hardware. It requires minimal CPU and RAM compared to modern versions.