Im using version 1.1.6.
I exported all products. opened it in excel, remove the data and fill it with new data.
I import, everything ok.
when i look at catalog there are 21 products perfectly imported.
it are realy simple products, not even imagaes attached.
screenshots of stalling and catalog attached, i can mail you the import file csv if you want to help me.
Click thumbnail to see full-size image