It doesn't matter what program I am in i.e. Excel, Word, etc, etc when I do a File > Save As the Save As dialog appears and in the drop-down field "Save as type" the default value always selected by Windows .txt. I'd like to change this format to always read another type for format instead i.e. .XLSX or .DOCX. Where in Windows or the registry would I need to go to make this change? Thanks.