| Software | Portable Version | Compatibility with .DOC/.XLS | Size | | :--- | :--- | :--- | :--- | | | Yes (Official) | Excellent (Supports old formats) | ~400MB | | SoftMaker FreeOffice | Yes (Official) | Very Good | ~150MB | | AbiWord Portable | Yes (Official) | Good (Text only) | ~20MB | | OnlyOffice Desktop | Portable option | Good | ~300MB |
Using any version of Office 2003 in 2026—especially an unofficial "portable" one—comes with severe risks: | Software | Portable Version | Compatibility with
Microsoft Office 2003 is a productivity suite developed by Microsoft, released on October 21, 2003. It was the successor to Microsoft Office XP and preceded Microsoft Office 2007. The suite included several applications, such as: released on October 21