I'm trying to create a spreadsheet that will reorder a lot of data, from a different source sheet every day. I have created templates in Numbers 2009 and Excel 2011, but both suffer from the same unhelpful helpfulness. Either that, or I'm going about it in completely the wrong way. The original worksheets are in the same stupid, cluttered format, with the same name "Jumpering Schedule". I have created some worksheets which mostly use =OFFSET to cherry pick the relevant data from "Jumpering Schedule" and place it in "Prejumpering" and "Changeovers". "Jumpering Schedule" is the only sheet in a new workbook, downloaded from the intranet every day. I copy the sheet, and paste it into the workbook template with "Prejumpering" and "Changeovers" sheets. Now every formula in "Prejumpering" and "Changeovers" which refers to "Jumpering Schedule" has a !REF error - I assume because the original version of "Jumpering Schedule" is no longer there. I can correct each formula in turn, but it's very time consuming. How can I make it refer to whatever sheet has that name, rather than the specific sheet it really wants to use? I'm trying to do it without using macros, because I've had problems before transferring them between my Mac and my work Vista laptop, and I don't know enough about them to understand the error message.