Dear Discussion group members
In 2006 I saved the data in SPSS 13 and kept them until 2011 on a USB. Then in 2011, I removed all the data in the USB including my data in SPSS. When I needed the data again, I had to retrieve the data in SPSS 17. The data are shown on the sheet (SPSS 17) but when I try cross-tab or frequencies,a message says that the data is lost.
I know that SPSS 17 can read SPSS 13 but I do not understand why it says that the data is lost.
Please could you help me in solving my problem over SPSS.
Best regards
Mojdeh