Defining a Custom Paper Size. by Allen Wyatt (last updated April 19, 2014). This is why there is no way to set a custom page size in Excel. That being said. Excel 2010. This is a discussion on Excel 2010 within the Excel Questions forums, part of the Question Forums category; New user--How do I set custom paper size ie 4. Custom Paper Size Excel 2010 We already tried to set the paper size of the Excel document to A4. In excel options (office 2010). Untick Scale content for A4 or. How to Change the Paper Orientation and Size in. In Excel 2010. you also can change the paper orientation and paper size from the Settings section of. Custom Paper Size Excel Vba Custom paper size excel 2003 How to set. Excel 2010. you also can change the paper orientation and paper size from the. How to Setup Custom Page Size (Excel 2010). but cannot find an option for custom size. Does anyone know: 1. Is there a custom paper size option? 2. Defining a Custom Paper Size. by Allen Wyatt (last updated May 31, 2014). This article is written for users of the following Microsoft Excel versions: 2007, 2010. Excel 2010 Posts 7. Re: I can't change paper size!! try this open excel file. I can't change paper size!! I guess you have solved the problem, right? How can i do custom paper size in excell 2010? How can I print a spreadsheet on 8.5 x 17 paper in Excel 2010. Custom Paper Sizes. of Excel if your printer supports that size of paper.