I have a cell in a worksheet which is linked to a cell in another workbook. In theory the link should update when I open the first workshheet, however the linking formula has changed itself to c:\Users\Michael\AppData\Roaming|Microsoft\Excel\file name and cell reference. It is supposed to link directly to a cell in a workbook in my D: drive and ,because it doesn't, the result in the cell is outdated. I have manually changed the formula to directly link to the appropriate cell but Excel simply changes it back. Help!