What are the best practices for displaying generated Excel files in the browser for immediate user access?

When generating Excel files in PHP for immediate user access in the browser, it is best practice to set the appropriate headers to indicate the file type and force a download prompt. This ensures that the Excel file is displayed correctly and downloaded by the user without any issues. 

// Set headers for Excel file download
header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
header('Content-Disposition: attachment;filename="generated_excel_file.xlsx"');
header('Cache-Control: max-age=0');

// Output the generated Excel file content
// Replace this with the code that generates the Excel file content
echo $excel_file_content;
exit;

Keywords

PHPExcel header Content-Disposition readfile browser cache

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