Opening an audacity file

I have recorded hundreds of music files sucessfully. As they took a lot of space I put the subfiles with the audacitylogo on them into the respective file folder. After that I cannot open them. Now I have worked 2 months in vain or is there a way to solve this? The files which first looked like the audacity logo are now looking in a different fashion and brooken up into lots of lots of subfiles each one with a number. What to do? I do not think I can spend another months saving them again. (Those I did not put into their respective folders can be opened without problems) PLEASE HELP!