Excel 2007. I have the workbook structure protected with a password. When I open the file, the worksheets are sized to file the normal Excel window space. When I email the spreadsheet to a customer who also has Excel 2007, the worksheets are small and she has to use the arrows to navigate. We tried changing her view and that didn't work. She does not have the arrows available to resize the window. The only way I could fix it for her was to remove the workbook structure protection. I'm nervous about leaving it this way for our entire customer base as they could unhide hidden sheets and even delete them. Has anyone else experienced this? One more thing, customers that have an earlier version of Excel have not had this problem. This workbook is save as an .xls to be backward compatible. Thanks.