This article describes how to import data from SuperPuTTY.
For that you'll need to:
Export the data from SuperPuTTY through 'File > Export Sessions'.
Convert the data into an ssh config file (see below).
$PSDefaultParameterValues['Out-File:Encoding'] = 'utf8'[xml]$content = Get-Content .\Desktop\SessionsSuperPutty.XML$content.ArrayOfSessionData.SessionData | %{'Host {0}' -f $_.SessionName' Port {0}' -f $_.Port' User {0}' -f $_.Username' Hostname {0}' -f $_.Host}>ssh_config
Substitute '.\Desktop\SessionsSuperPutty.XML' with the location of the file created by SuperPuTTY.