Files that contain the .sxw file extension are most commonly associated with the StarOffice Writer word processing software application. The SXW files contain word processing documents that have been created within the StarOffice Writer application.
StarOffice Writer is included with the StarOffice Suite, which is based on the OpenDocument XML file format. This file format was created by Sun Microsystems as an open community effort.
SXW files can contain rich text, simple graphics, bitmaps and formatting information such as font sizes and styles. SXW files are similar to Microsoft Word's .docx files, but the StarOffice Writer is a freeware application.
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If you have additional information about the SXW file format or software that uses files with the SXW suffix, please do get in touch - we would love hearing from you.