Neil...
I have a vba program. It was really slow b/c it accessed the spreadsheet
cell by cell. I made the program a lot faster by using arrays to do mass
input and output with the spreadsheet. I would like to make the program
faster. What else can I do? The time consuming part seems to be 1)the actual
writing to the spreadsheet by vba and 2)the opening of the software. to open
it, you double click the .xls file. It takes about 10 seconds to load up.


Try:

Application.ScreenUpdating = False
<Your Code
Application.ScreenUpdating = True