{ FILE *ff = fopen("testcsv.txt", "r"); int i1,y,m,d,h,mn,s,ss; float f; while(fscanf(ff, "%d,%d/%d/%d %d:%d:%d:%d,%f", &i1,&y,&m,&d,&h,&mn,&s,&ss,&f)!=EOF) { printf("%d,%d/%d/%d %d:%d:%d:%d,%f\n", i1,y,m,d,h,mn,s,ss,f); } }