I found that the Word Mobile on my LG KS20 PDA phone saves documents in docx format by default. Even saving as doc, rtf or txt on the PDA won't change the docx format. So, I can't open these files on my computer without Microsoft Office 2007. The Notes application will saves files as pwi format which also cannot be opened on a computer. In fact, there is no text editor on the PDA without resorting to third party utility.
Since there is no Word Viewer 2007 available, you've to download the following: