xtable for to a specific cell

[Daniel John Molnar]

Can I use the xtable command to put the table to a specific cell? So for example I can put several table under each other on the same sheet?
Like if I write
xtable A1 A2, filename(results.xlsx) sheet(A1) modify

xtable A1 A3, filename(results.xlsx) sheet(A1) modify

The second will overwrite the first one. I tried cell(), row() both give error message.