DevConverter is an online document converter. Amongst many others, we support PDF, DOCX, PPTX, XLSX. Thanks to our advanced conversion technology the quality of the output will be exactly the same as if the file was saved through the latest Microsoft Office 2019 suite.
SDW is an open source document file that is associated with OpenOffice.org. This file is created with earlier versions of StarWriter. In the later versions of StarWriter SXW extension is used instead of SDW. SDW supports some basic document format options.