$userscsv = Get-Content -Path "C:\Temp\users.csv" -Encoding UTF8
$users = ConvertFrom-Csv -InputObject $userscsv -Delimiter ';'
foreach ($user in $users) {
New-ADUser -SamAccountName $user.username -Surname $user.lastname -GivenName $user.firstname -AccountPassword $user.password -EmailAddress $user.email
}