About speech playback
Microsoft Excel makes it possible for the computer to audibly read back data entered on a worksheet. You can use the Text To Speech toolbar to read back data you select for verification. Each cell is highlighted as the value is spoken, and when you hear an error, you can stop the sound read back to correct the error in the cell. If you prefer, you can choose to hear the value of the cell spoken immediately after you enter data in each cell by clicking Speak On Enter .
Text to speech The computer reads what is currently visible on the worksheet. For example, if the worksheet is in formula view, the computer reads formulas. If the data in the spreadsheet is hidden, the computer doesn't read the data.
Reading order You can choose whether the computer will read by rows or by columns. By default, the computer reads across a row and then moves down to the next row. If you choose the option of reading by columns, the computer reads a column from top to bottom and then moves to the next column.
Speech, a Control Panel application, allows you to choose between different computer-generated voices, and a voice speed setting you can customize.