The description of sxw format expansion
The sxw file is a word processing document originally created by StarOffice Writer, the open-source word processor included with StarOffice suite. Originally the sxw file is based on the OpenDocument XML format and is compatible with Apache OpenOffice Writer, the successor to the described program. Currently Apache OpenOffice uses ODT extension in order to save documents.
The product was originally developed by Sun Microsystems, who was acquired by Oracle. StarOffice became OpenOffice, an Oracle commercial product. OpenOffice is the same product as the free Apache OpenOffice, except that the actual software package includes a technical support package.