Example:
<javascript>
var carpetaReporte = companyhome.childByNamePath("Sites/comex-y-logistica/documentLibrary/Comex y Logistica");
var logFile = carpetaReporte.childByNamePath("backuplog.xlsx");
logFile = carpetaReporte.createFile("backuplog.xlsx");
logFile.content += "test";
</javascript>
I can create the Excel file and write some content, but I want to separate in cells, rows, etc. Is it possible?