Unable to create new curve

As I stated yesterday, I got everything to work except now I noticed that all the new curves are .txt and not .quad so nothing is useable. When I read the targets as described by J K Schreiber the data is recorded as a .txt file. In the Spyder Print software, there are options to select as export: LAB (the default), density, QTR format Override, Include Line Numbers, Linearization, Create ICC, & XYZ. Should I have chosen something else?