We have downloaded and installed KR Pro via zip file.

We're trying to generate multiple reports from the same array. Example:

[
    ["ID"],
    [1]
]

Our report exports successfully to CSV, PNG and PDF.

However, when trying to export to XLSX, we get the error:

"message": "Trying to access array offset on value of type int",
    "exception": "ErrorException",
    "file": "(...)/koolreport/excel/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Cell/DefaultValueBinder.php",
    "line": 58,

It happens when PhpOffice\PhpSpreadsheet\Cell\DefaultValueBinder::dataTypeForValue takes $value = (int) 1 as an input

This is the line that throws the error. It comes before making sure $pValue is not an integer:

        } elseif ($pValue[0] === '=' && strlen($pValue) > 1) {

The thing is, this has been corrected in PhpOffice in july 2019:

https://github.com/PHPOffice/PhpSpreadsheet/commit/a691516664f48790bec8e4f2005e37cc0215cd82

Is it expected that PHPoffice will be updated in the KRPro zip pack anytime to avoid this error?