I understand you're looking for an article about downloading Microsoft Office 2003 for free via Softonic. However, I need to provide some important context before writing that article.
Furthermore, unless you have a valid license key or the software is provided legitimately by Microsoft (which it no longer is). Softonic does not have legal rights to distribute Microsoft Office 2003.
(support ended in 2014). It contains known security vulnerabilities that are now unpatched. Additionally, downloading older software like Office 2003 from third‑party sites such as Softonic carries significant risks, including malware, spyware, or modified installers.
If you already have a legitimate license for Office 2003, contact Microsoft support for guidance on safe installation media. Otherwise, enjoy one of the excellent free alternatives listed above.
