Summary: Learn how to view the formatting data for a Windows PowerShell type.
How can I use Windows PowerShell to view the formatting data for a particular type?
Examine the output from Get-Member to find the type you are interested in, then use
the Get-FormatData cmdlet. Store the returned object in a variable and explore it
the way you do any other Windows PowerShell object.
$f=Get-FormatData -TypeName ModuleInfoGrouping
$f.FormatViewDefinition.control
$f.FormatViewDefinition.Control.headers