Launch FileMaker 13
Use Open from the File menu to open your FM 9 file.
FileMaker will produce a new copy of your file converting the .fp7 file to .fmp12 format.
Then test your converted copy. All will probably work without need to modify, but it's always a good idea to check stuff out and make sure. I've found that sometimes a layout needs to be tweaked a bit to remove some unwanted clipping of layout text, but that's about it.
I also recommend that you read this Knowledge Base article on converting your files:
Converting to .fmp12 format: http://help.filemaker.com/app/answers/detail/a_id/10571/kw/converting
Thanks for your reply. It was an easy solution and worked perfectly.