I can only view a spreadsheet in Maximised size - when I minise it, it
disappears off the screen. I can't work out how to set the size of the
minimsed sheet because I can't click and drag the corner of the spreadsheet.

I would bet that you're not minimizing the worksheet. I'm betting that you're
resizing it to be less than maximized.

If you do
Window|Arrange|tiled
Then resize, does that help?

If you meant that you're working with the application window--not the sheet
window within excel, and you make it less than maximized (still not
minimized)...

Try closing all applications except excel (it'll make it a bit easier)
rightclick on an empty spot on the windows taskbar (usually at the bottom)
select cascade windows

Then resize anyway you want.

Richard wrote:

I can only view a spreadsheet in Maximised size - when I minise it, it
disappears off the screen. I can't work out how to set the size of the
minimsed sheet because I can't click and drag the corner of the spreadsheet.

--

Dave Peterson