function Get-PreviousWorkday ($Days = 0) {
    begin {
        $date = get-date
    }
    process {
        $i = 0
        do {
            $date = $date.adddays(-1)
            if ($date.DayOfWeek -match '^[^s]') {
                $i++
            }


        } while ($i -lt $days)
    }
    end {
        return $date.Date
    }
}