Support to configure the ignore the first title row

[rigofunc]

Currently, the the first row is the title row, but, in some cases (e.g. exporting to the specify excel template, the title row had exist), the title row SHOULD be ignored.

[mrtylerzhou]

It is great though I haven't use this feature.But take all kinds of situations into consideration make this repo excellent.A happy mid autumn day

[rigofunc]

@mrtylerzhou PR welcome!