var fso,
    colFiles,
    file,
    oExcelApp,
    oWorkbook,
    oSheet;
oExcelApp = new ActiveXObject('Excel.Application');
// oExcelApp.DisplayAlerts = false;
fso = new ActiveXObject('Scripting.FileSystemObject');
colFiles = new Enumerator(fso.GetFolder(fso.GetParentFolderName(WScript.ScriptFullName)).Files);
for (; !colFiles.atEnd(); colFiles.moveNext()) {
    file = colFiles.item().Path;
    if ('xlsx' !== fso.GetExtensionName(file).toLowerCase()) continue;
    try {
        oWorkbook = oExcelApp.Workbooks.Open(file, 3, true);
        oSheet = oWorkbook.Worksheets(1);
        oSheet.PageSetup.Orientation = 2;
        oSheet.PrintOut();
        oWorkbook.Close(false);
    } catch (err) {
        WScript.Echo(file + '\n' + err.message);
    }
}
// oExcelApp.DisplayAlerts = true;
oExcelApp.Quit();
WScript.Echo('printing complete');
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