PHPExcel very slow - ways to improve?

PHPExcel very slow - ways to improve?

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How to generate an Excel document with multiple worksheets from PHP?

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How to generate an .xlsx using php

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Saving a PhpSpreadSheet through button click

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How to get value by column name in php spreadsheet-parser library?

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Center all text in PHPSpreadsheet and make the cells expand to fill up with context

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PHP - Read-Only spreadsheet filetype?

php formatting file-type spreadsheet readonly

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