[Bug]: Excel is broken

[semi-programm]

Is the bug applicable and reproducable to the latest version of the package and hasn't it been reported before?

• Yes, it's still reproducable

What version of Laravel Excel are you using?

3.1.33

What version of Laravel are you using?

3.6.4

What version of PHP are you using?

8.68.1

Describe your issue

The generated Excel is broken and cannot be opened.

The detailed cause has not been investigated, but it seems to be broken when dependency package "phpoffice/phpspreadsheet": "1.19" is used.

Solution

Downgrading the version of "phpoffice/phpspreadsheet": "1.19" to 1.18 will improve the situation.

How can the issue be reproduced?

Please refer to the following.

• PhpSpreadsheet/issues/2362
• PhpSpreadsheet/issues/2366

What should be the expected behaviour?

Excel is not broken and is expected to open

[patrickbrouwers]

Please report to PhpSpreadsheet instead, there's nothing we can do here.