Error message in Writer

I got the following msge when I tried to re-open I file I had been working on. How can I recover the file? The file is a table originally written in Word as a docx file

File format error found at
SAXParseException: '[word/document.xml line 2]: Attribute w:cstheme redefined
', Stream ‘word/document.xml’, Line 2, Column 21801(row,col).