when use ^3.1.* , this problem has Reappear #698
this is my import excel


You'll have to create a custom formatter to serve your needs. Documentation can be found here: https://laravel-excel.maatwebsite.nl/3.1/imports/heading-row.html#custom-formatter
Please note that you are working with unreleased software.
You'll have to create a custom formatter to serve your needs. Documentation can be found here: https://laravel-excel.maatwebsite.nl/3.1/imports/heading-row.html#custom-formatter
Please note that you are working with unreleased software.
This answer has solved my problem. Thank you.



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You'll have to create a custom formatter to serve your needs. Documentation can be found here: https://laravel-excel.maatwebsite.nl/3.1/imports/heading-row.html#custom-formatter
Please note that you are working with unreleased software.