I have Excel95 files with multiple worksheets in them. On some of the worksheets are dates. I select all of the worksheets and then select all of the cells on the worksheets and perform a copy operation. I then attempt to paste the data into an Excel97 workbook. Everything copies fine with the exception being that the dates all jump back by 4 years. In other words, 4/4/97 becomes 4/4/93,etc. This happens without exception. How can I avoid or fix this problem?