writeDateTime method
Implementation
String writeDateTime(DateTimeCellValue value) {
final delta = value.asDateTimeUtc().difference(_excelEpoch);
return _toDayFraction(delta).toString();
}
String writeDateTime(DateTimeCellValue value) {
final delta = value.asDateTimeUtc().difference(_excelEpoch);
return _toDayFraction(delta).toString();
}