To select whether to search within cell formulas, values, or comments, press the Tab key until you hear 'Look in.' You hear the currently selected search option ('Formulas,' 'Values,' or 'Comments'). Use the Up and Down arrow keys to move to the option you want, and press Enter to select it. To select whether to search by rows or by columns, press the Tab key until you hear 'Search.' You hear the currently selected search option ('By Rows' or 'By Columns').
To select where to search for text or numbers, press the Tab key until you hear 'Within.' You hear the currently selected search option ('Sheet' or 'Workbook'). To define more search options, press Alt+T. For example, to find data that contains a question mark, enter ~? as your search criteria. Tip: Even though they’re wildcard characters, you can still find asterisks, question marks, and tilde characters (~) in worksheet data by preceding them with a tilde character in the Find what box.