myWritings opens, edits, and saves files in this formats:
Plain Text (.txt)
Rich Text Format (.rtf)
Rich Text Format Directory (.rtfd)
Open Document (.odt)
Microsoft Word 2007 (.docx)
Microsoft Word 97 (.doc)
Microsoft Word 2003 XML (.xml)
The most compatible file format is RTF.
How to save the current document
Use Menu > File > Save…
How to save the current document into another file format
Use Menu > File > Save As…
Hints
By default all documents are automatically saved in background
Apply default file format in Preferences