void sor_Example()
{
    int        iStatus;
    ASCIMP    ai;
    string     strFile = "C:\\data.dat";
    if(AscImpReadFileStruct(strFile,&ai) == 0)
    {
        ai.iRenameWks = 0; //to rename worksheet from filename            
        ai.iRenameCols = 1; //0 to keep default column names, 1 to rename columns using 1st line of header block
 
        Worksheet wks = Project.ActiveLayer();
        wks.ImportASCII(strFile, ai);
        
        vector<int> vCol = {0,1};
	vector<int> vSort = {SORT_ASCENDING, SORT_ASCENDING};
	wks.Sort(vCol, vSort) ;
    }
}