1 In Excel 2007, click the Office button and choose Save As. 2  In 2010, click the File tab and choose Save As. 3  Click the Tools dropdown on the dialog toolbar and choose Save Options. 4  In Excel 2007 and 2010, click the Tools dropdown (in the bottom left corner of the dialog box). In Excel 2007, click the Office button and choose Save As. 2  In 2010, click the File tab and choose Save As. 3  Click the Tools dropdown on the dialog toolbar and choose Save Options. 4  In Excel 2007 and 2010, click the Tools dropdown (in the bottom left corner of the dialog box).