I thought I had backed it up, but it turns out I didn't. I copied all the information from the Help -> Family File Statistics tab. I taped all of the information to the cover of the case of the CD I thought I had backed up the information to. I do not know what WFT file or tree it is, I only know that I finished the file between mid-July and August 10, probably close to August 8 this year. I believe I uploaded it to the World Family Tree upon completing the most recent branch.