An exception occurred while exporting execl from PHP to a column.

An error occurred while exporting execl from PHP to a column. the current situation is. we run completely normally on our own machine. put it on the server and an error occurs. indicates that the code is correct. which configuration has an error ., when you open the downloaded xls file in a text editor, you can see the problem. Eliminate it slowly. the space environment is different from the local environment .. An error occurred while exporting execl from PHP to a column.
The current situation is.

We run completely normally on our own machine. an error occurs when we put it on the server.
It indicates that the code is correct. the configuration has an error.



------ Solution --------------------
You can open the downloaded xls file in a text editor and you will see the problem.
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Eliminate the difference between the spatial environment and the local environment ..