SXW is a text file format. From the very beginning, it was created for StarOffice Writer, that is, an application that processes texts from the Sun Microsystem StarOffice office suite. StarOffice was developed by Sun Microsystems. Then it was bought by Oracle. That's why Star Office has evolved into Apache Open Office, and is now a commercial Oracle product. At the same time, it is the same software product as the free program OpenOffice.org. The only difference is that the new Open Office provides technical support for packages. The Apache Software Foundation supports the Apache OpenOffice software package, and it provides a universal set of tools designed to work with vector drawings, spreadsheets, text documents, databases, etc. The .sxw file is an OpenOffice text document that is saved in XML-based Sun XML Writer (SXW) format. Currently, the SXW format and other OpenOffice formats that are outdated have skipped ahead of the family of standard OpenDocument Format (ODF) formats with .odt extensions without preserving compatibility between them. SXW files are opened by programs such as StarOffice Writer and OpenOffice.org Writer.
PPT is a presentation format in the popular Power Point application. A file of this format is an editable slide show that consists of a sequence of slides. Directly in the slides can be used not only formatted text, but also video, images, sound and visual effects. The name PPT is an abbreviation for PowerPoint Presentation. The developer of the format is Microsoft. PPT files are created as part of the Microsoft Office PowerPoint software package. Support for the format is possible on Mac OS and Windows, as well as on devices based on Android.