I want to know other pageSetup Attributes like scale, Header / Footer and rows to repeat at top

Kashif Haroon

var sheet = xlsx.xl.worksheets['sheet1.xml'];

var pageSet = sheet.createElement("pageSetup");
sheet.childNodes["0"].appendChild(pageSet);

var seiteneinstellung = sheet.getElementsByTagName("pageSetup")[0];
seiteneinstellung.setAttribute("paperSize", "9");
seiteneinstellung.setAttribute("orientation", "landscape");
seiteneinstellung.setAttribute("r:id", "rId1");

tangerine

Documentation is here:
https://docs.microsoft.com/en-us/previous-versions/office/developer/office-xp/aa140066(v=office.10)?redirectedfrom=MSDN

There are also plenty of posts in here about customisation.