| Offset | Name | Size | Contents |
|
| 4 | xWn | 2 | Horizontal position of the window. |
| 6 | yWn | 2 | Vertical position of the window. |
| 8 | dxWn | 2 | Width of the window. |
| 10 | dyWn | 2 | Height of the window. |
| 12 | grbit | 2 | Option flags. |
| 14 | itabCur | 2 | Index of the selected workbook tab (0-based). |
| 16 | itabFirst | 2 | Index of the first displayed workbook tab (0-based). |
| 18 | ctabSel | 2 | Number of workbook tabs that are selected. |
| 20 | wTabRatio | 2 | Ratio of the width of the workbook tabs to the width of the horizontal scroll bar; to obtain the ratio, convert to decimal and then divide by 1000. |