Hi Rob,

I imported an old .s01 file into SD7.... that was fine, when I closed the file I hit save. Now I can't open that particular .s01 file in SD 2007 or SD7. Old SD tells me "unexpected file format", and SD7 says I can't import SD7 files. If I just click on the file in the file browser it chooses the old format to open. The extension remains .s01.