Gmetrix Excel Practice 3 Flashcards & Practice Test | Quizlet In the 2010 Sales worksheet, apply the Heading 1 cell style to cell A1. Click cell, cell styles, heading 1 In the 2010 Sales worksheet, merge and center the content in the top row from column A to G. Highlight range, press the merge and center button Ensure that row and column headings and gridlines display when printing the worksheet.