function sample_sendMailChart() { id="14Z1-QWaoAg1Sa4NXnNI80gB5F3_xelKyvfDRNZF_z4g"; var ex1 = SpreadsheetApp.openById(id); var sheet = ex1.getSheetByName("data"); sheet.getRange(1,1,100,100).setBackground('white'); for(s=1;s<101;s++){ sheet.setColumnWidth(s, 10) sheet.setRowHeight(s, 10); } sheet.getRange(1,1,100,100).setBackground('red'); }