Laravel excel maatwebsite 3.1 import, date column in excel cell returns as unknown format number. How to solve this?

The numbers come from excel itself, dates stored in excel as numeric values. http://www.cpearson.com/excel/datetime.htm

For Laravel framework 5.6 and maatwebsite/excel package version 3.1, to convert date from excel numbers to normal date format, this function PhpOffice\PhpSpreadsheet\Shared\Date::excelToDateTimeObject($dateFromExcel) can be used. It accepts integer(excel date) and returns DateTime object.

More information can be found here https://github.com/Maatwebsite/Laravel-Excel/issues/1832

From this answer: https://stackoverflow.com/a/55139981/9133724

Solved! This is the code I used to solve my problem:

Carbon\Carbon::instance(\PhpOffice\PhpSpreadsheet\Shared\Date::excelToDateTimeObject($value));