How to know if an Excel cell has a rectangle inside an its background color using vb.net

Try something like this:

"I got few experiences with Excel automation.
Let get back to the previous post and add this line.
Excel.Range range = ws.get_Range(ws.Cells[1,1],ws.Cells[1,2]);
range.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;"

Please note, this has been copied and pasted from this thread: http://bytes.com/topic/c-sharp/answers/252803-setting-excel-2003-borders-programmatically

Thanks for your answer but the rectangle is inside the cell, this is not a border.

so, that rectangle is an embedded image?

I think it was created as a form (insert/form). I am attaching an example of an excel file with rectangles. Rectangles.xls

Thanks for that...

by the looks of it, that rectangle is not part of the cell... What you'll need to do is the following:
1) Get list of all objects on the worksheet
2) find the cell of interest and try to get that cell's coordinates
3) Loop through the list of your rectangles and see if a coordinate falls in a cell of interest.

If I'll find some code, I'll post it, but I hope this will at least give you some idea of where to start looking from.

Thanks for your answer, that code is helpful.

Glad to help :)