This code helps to import an XPO using X++
static void importXPO(Args _args)
{
SysImportElements sysImportElements = new SysImportElements();
;
sysImportElements.newFile("C:\\Form_KranthiTest.xpo");/// this is your XPO filename
sysImportElements.parmImportAot(true);
sysImportElements.parmImportWithIds(false);///if you don't to import with IDvalues
sysImportElements.import();
}