How to keep the protection of a workbook while modifying it

[ArthurGLACET]

Hello In a test case i need to download an excel file, edit it and re-upload it.

As i modify it and save it the workbook protections are lost, this prevent me from re-upload my file (functional rule).

Here is a part of the code:

    await workbook.xlsx.readFile(filePath);
    var column = workbook.worksheets[0].getColumn('H');
    const randomValue = gauge.generateRandomIntegerInRange(1,100);
    column.eachCell(function(cell, rownumber){
        if(rownumber>1){
            cell.value=randomValue;
        }
    });

   workbook.xlsx.writeFile(filePath);

How can i modify the file without erasing the protections ?

[ArthurGLACET]

anyone ?