parallel function commputing error

I have 17 excel files in my folder i am trying to read them one by one and trying to use Kendall Test , i am calling this function in my code below

file=dir('*.xlsx');
    thisfile=sort({file.name});
    mkdir('MK');
    Unme=pwd;
    newdirof1=[Unme,'\MK'];
for kk=15%length(thisfile)
       infile1=thisfile{kk};
         whichfile1 = sscanf(infile1, '%c%c%c%c');
        mydata=xlsread(infile1);
        %yourdata=mydata(:,3);
        datain=mydata.';
        alpha=0.05;
        wantplot=1;   
[taub tau h sig Z S sigma sen n senplot CIlower CIupper D Dall C3 nsigma] = ktaub(datain, alpha, wantplot)
preparewell=char(strrep(infile1(1:4), '-', ''));
      TileName=['SEN SLOPE ON ',' ',preparewell,' ', 'hPa'];
      title(TileName,'fontweight','bold','fontsize',16)
  thisname=char(strrep(newdirof1(end-4:end),'\',''));
      %thisName=myName(end-1:end);
      finalname1=[thisname,preparewell];
      print(finalname1,'-dtiff','-r300');
      yname=strcat(finalname1,'.tif');
      movefile(yname,newdirof1);
   finalname2=[char(strrep(newdirof1(end-4:end),'\','')),char(strrep(infile1(1:4), '-', ''))];
 myheader={'taub','tau' ,'h', 'sig', 'Z', 'S' ,'sigma', 'sen', 'n','senplot','CIlower', 'CIupper' ,'D' ,'Dall','C3', 'nsigma'};
 xlswrite(finalname2,myheader,'Sheet1','B1');
 xlswrite(finalname2,taub,'Sheet1','B2');
 xlswrite(finalname2,tau,'Sheet1','C2');
 xlswrite(finalname2,h,'Sheet1','D2');
 xlswrite(finalname2,sig,'Sheet1','E2');
 xlswrite(finalname2,Z,'Sheet1','F2');
 xlswrite(finalname2,S,'Sheet1','G2');
 xlswrite(finalname2,sigma,'Sheet1','H2');
 xlswrite(finalname2,sen,'Sheet1','I2');
 xlswrite(finalname2,n,'Sheet1','J2');
 xlswrite(finalname2,senplot,'Sheet1','K2');
 xlswrite(finalname2,CIlower,'Sheet1','L2');
 xlswrite(finalname2,CIupper,'Sheet1','M2');
 xlswrite(finalname2,D,'Sheet1','N2');
 xlswrite(finalname2,Dall,'Sheet1','O2');
 xlswrite(finalname2,C3,'Sheet1','P2');
 xlswrite(finalname2,nsigma,'Sheet1','Q2');
 Tname=[finalname2,'.xls'];
 movefile(Tname,newdirof1); 
end

But this function runing fine for some excel files and not ploting graph for some excel files?

Any body guide me what mistake i am consistance doing?

Thanks always..