Sets the frozen cells in the active worksheet view. The range provided corresponds to the cells that will be frozen in the top- and left-most pane.
| Name | Type | Description |
| frozenRange | ApiRange | String | A range that represents the cells to be frozen. |
builder.CreateFile("xlsx");
var oWorksheet = Api.GetActiveSheet();
var oFreezePanes = oWorksheet.GetFreezePanes();
var oRange = Api.GetRange("H2:K4");
oFreezePanes.FreezeAt(oRange);
builder.SaveFile("xlsx", "FreezeAt.xlsx");
builder.CloseFile();