Background.

I've written many programs in VB2008 creating and reading excel spreadsheets
(office 2007)
All program written before were using "Console Application"

My problem.
Program written as Windows Form
Open spreadsheet and populate fields in a form
User can change values in form
Save those values back into same cells in spreadsheet
Save spreadsheet

I get the values into the form
I execute the save command with the new values
I can rerun vb program and get the new values without any problems


My problem.
If I open the saved spreadsheet in Excel I do not see anything not even the
name shows up on the title bar. It is as if Excel never opens up the
spreadsheet. The file size is the same as before manipulating the data and
like I said I can rerun my VB program and get the fields without any issues.

I also tried doing a saveas to another spreadsheet and have the same issue
opening it up.

I also tried converting from 2007 to 2003 format both for input and output
with the same issues.

Thanks in advance,
Steve