Adding a Close Workspace option when right-clicking Excel in taskb

Like most users, I group applications on the taskbar to conserve space. I am
able to close all applications I use regularly by right-clicking with the
sole exception being Excel because I use a workspace with multiple
windows/spreadsheets. I find it convenient to whiz through and quickly close
applications by right-clicking and selecting Close Group. However this option
is greyed out for Excel in the Taskbar, since technically there is only one
instance of Excel (not a group). But what about adding a Close Workspace
option? Or what about beefing up the scope of Close Group so it also closes a
workspace (i.e. if only a single Excel instance is open, but it is a
workspace, enable the Close Group option, and have it apply to the windows in
the workspace)?

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http://www.microsoft.com/office/comm...ic.excel.setup