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 Currently, the SXW format and other OpenOffice formats that are outdated have skipped ahead of the family of standard OpenDocument Format (ODF) formats with .odt extensions without preserving compatibility between them.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.
ODP is the native text file format from the OpenOffice office suite (or Apache OpenOffice). The format was developed by Sun Microsystems. Its name is an abbreviation for OpenDocument Presentation. The ODP extension is commonly used to create presentations. To create ODP files, the open XML standard OASIS OpenDocument is used. Since 2010, the popular Microsoft PowerPoint program can also work with ODP files. A presentation in ODP format can exist in the form of a set of slides, which include text (including formatted), graphics, various effects.