Track 'n Trade Pro will open up with no Book open. If you would like to continue working on a Book that you have saved, you will need to open the saved Book. Follow the instructions below to open the book you saved:
Opening you Saved Commodity Book:
Another way to access recently saved documents, is to go to the bookmarked section at the end of the File Menu. To open a Book on the Bookmarked list, simply click on the File Menu and then on the specific file. In the window below, the last Book opened was titled Grains.tnt: