My work Experiences on SharePoint 2001/2003/2007/2010/2013/2016/2019/Subscription Edition /M365/SharePoint Online Administration
$farm = Get-SPFarm $file = $farm.Solutions.Item("extendeddiagnosticproviders.wsp").SolutionFile $file.SaveAs("c:\temp\extendeddiagnosticproviders.wsp")