for(ready=0,attempts=0;ready==0&&attempts<10;attempts++) {
	dde -c Excel|System idSys;
	sec -p 1;
	if(idSys>=0) ready=1;
}
if(attempts>=10) {
	type -a Request timed out. Terminating...;
	break1;
} else {
	type -a Connected, retrieving info.;
}
dde -r idSys Topics;
dde -d idSys;
ii=1;
getn (Select a Topic:) ii:Z (Excel System Topics);
dde -c Excel|%[%Z,#ii] idXL;
doc -s;
doc -n;
set %H -e 40;
wo -s 0 0 0 0;
wo -p 201 scatter;
x2=50;y2=2;
currentrow=1;
blocksize=10;
reps=4;
delay=1;
getn (Block Size (Rows):) blocksize (Number of Blocks:) reps (Time delay (seconds):) delay (Excel DDE);
repeat reps {
	dde -rc idXL R$(currentrow)C1:R$(currentrow+blocksize-1)C2 Data1!R$(currentrow)C1:R$(currentrow+blocksize-1)C2;
	currentrow+=blocksize;
	sec -p delay;
};
dde -d idXL;