Some question about modifying excel by DDE

[on818come]

I have read the instruction of DDE. It really helps. But still some question I can't figure out.
1. How to add content to one cell.
2. How to move the table entirely to some specific position in the sheet, or how to add empty columns and lines.
3. I want to keep some content in orginal template sheet while using DDE to export data into excel (actually the problem is each time SAS opens the EXCEL, the sheet becomes blank.

thank you so much. I really didn't expect so much helpful information. I love here, as a beginner.

 

[on818come]

I got some idea after reviewing the instruction. but still expect some more detailed explanation. Thx