Hi,
Here is the way to get wsp file from SharePoint Central Administration.
Open SharePoint Management Shell(PowerShell) and run below script.
$farm = Get-SPFarm
$file = $farm.Solutions.Item("MyProject.wsp").SolutionFile
$file.SaveAs("c:\temp\MyProject.wsp")
Here is the way to get wsp file from SharePoint Central Administration.
Open SharePoint Management Shell(PowerShell) and run below script.
$farm = Get-SPFarm
$file = $farm.Solutions.Item("MyProject.wsp").SolutionFile
$file.SaveAs("c:\temp\MyProject.wsp")