StarOffice XML Writer (.sxw)
The SXW file extension is associated with StarOffice Writer, a word processor developed by Sun Microsystems and later succeeded by OpenOffice Writer. Based on the OpenDocument XML format, SXW files are ZIP archives containing XML files and other resources, enabling rich text documents with various formatting options. Although largely replaced by the ODT format, SXW files can still be opened and edited with modern software, ensuring continued accessibility.