//sample  
var process = Process.GetProcessesByName("Target")[0];  
using (var app = new WindowsAppFriend(process))  
{  
    dynamic main = app.Type(typeof(Application)).OpenForms[0];  
    var spread = new FpSpreadDriver(main._grid);
    
    //sheets.
    int count = spread.Sheets.Count;
    int activeSheetIndex = spread.ActiveSheetIndex;
    spread.EmulateChangeActiveSheet(1);
    var sheet = spread.Sheets[1];
    sheet = spread.ActiveSheet;
    
    //cell.
    var cell = sheet.Cells[0. 3];
    cell = sheet.ActiveCell;
    string text = cell.Text;
    int rowIndex = cell.Row.Index;
    int rowIndex2 = cell.Row.Index2;
    int rowIndex = cell.Column.Index;
    int rowIndex2 = cell.Column.Index2;
    sheet.EmulateChangeActiveCell(3, 5, true);
    sheet.EmulateAddSelection(1, 2, 3, 5);
    sheet.EmulateRemoveSelection(1, 2, 3, 5);
    sheet.EmulateClearSelection();
    
    //edit.
    sheet.EmulateChangeActiveCell(0, 1, true);
    spread.EmualteEditText("abc");
    
    sheet.EmulateChangeActiveCell(0, 2, true);
    spread.EmualteEditValue(2);
    
    sheet.EmulateChangeActiveCell(0, 3, true);
    spread.EmualteEditSelectedIndex(1);
    
    sheet.EmulateChangeActiveCell(0, 4, true);
    spread.EmualteEditCheckState(CheckState.Checked);
}