Native Instruments NKI Files Won't Open

[JBMusic]

After every project I back up my NKI files on my Session String Pro 2 and Session Horns Pro instruments just in case I ever want to re work them in the future. I recently switched from Cakewalk to Studio One. I went into my Cakewalk projects to back up the MIDI files. Just to try opening a Cakewalk project I did a year ago in Studio One I loaded the MIDI then I opened Kontakt 6 and loaded the NKI file for the Session Strings Pro 2 instrument I used and got an error that said something like "Cannot open because you're using an old version of Kontakt Player. Update to the new version". I updated to the newest version of 6 but got the same error. So I downloaded and installed version 8 but in this one I could not locate the NKI file. It was not an option. Could somebody please tell me how to correct this or may I as well not back up NKI instrument files anymore. I hate it when they change things like this!
Thanks
John B

 

[JBMusic]

I tried dragging the files from the explorer and a box comes up saying there are like 23000 files that can't be located. OK, so they changed something that makes what was once possible impossible. Happens all the time. Stupid of me to try it. I got all of the past projects saved in WAV files anyway so who needs the MIDIs?

Thanks for trying to help me anyway.

John B