File format error found at SAXParseException: '[word/document.xml line 2]: Attribute fillcolor redefined ', Stream 'word/document.xml', Line 2, Column 22803(row,col).

What does it mean, And how do I open the file?

File format error found at
SAXParseException: '[word/document.xml line 2]: Attribute fillcolor redefined
', Stream ‘word/document.xml’, Line 2, Column 22803(row,col).