Phpexcel export Excel file opens to display "found unreadable content"

When you export an Excel file with Phpexcel, the table is downloaded. Open to show "found unreadable content", ask whether to restore the contents of this workbook, click Yes, you can display the required content normally. Have someone encountered this situation, ask the expert answer!

Reply to discussion (solution)

May be BOM header

Multiple browser tests to see if the same problem occurs.

Look at the file?? Is it more? line or space.

Find out why, after calling $objwriter->save (' Php://output '), be sure to follow exit. You can try it, I've solved it.

