It pains me to see you have to resort to mouse clicks. If that suits you, fine...otherwise read on. The following code is maybe more what you need (you will end up with a csv file called "integrals.csv" in your proc directory:

int i, iIndex;
char path[200];
char h1[100],h2[100],h3[100],h4[100],h5[100];
float fFrom, fTo, fIntegral;
FILE *fin,*fout;

GETCURDATA
//create integral file
LI

//now read its contents 
(void)sprintf(path,"%s/data/%s/nmr/%s/%d/pdata/%d/integrals.txt",disk,user,name,expno,procno);
fin=fopen(path,"r");

if (fin==NULL)
  {
  Proc_err(DEF_ERR_OPT,"integral not found");
  STOP
  }

(void)sprintf(path,"%s/data/%s/nmr/%s/%d/pdata/%d/integrals.csv",disk,user,name,expno,procno);
fout=fopen(path,"w+");

//Get the 5 file header lines (ignoring them in this case)
fgets(h1,120,fin);
fgets(h2,120,fin);
fgets(h3,120,fin);
fgets(h4,120,fin);
fgets(h5,120,fin);

// now read the integrals, reformat them into csv format and write them out to integrals.csv
for (i=0;i<=100;i++)
{
  if(fscanf(fin,"%d %f %f %f",&iIndex,&fFrom,&fTo,&fIntegral)<3)
     {
        break;
     }
  fprintf(fout,"%d,%2.3f,%2.3f,%4.4f\n",iIndex,fFrom,fTo,fIntegral);
}
fclose(fin);
fclose(fout);
QUIT