Bulk Change Passwords of O365 users

Import-Csv "C:\temp\changepass.csv" -Delimiter "," -Encoding UTF8 | ForEach-Object {

        $user = Get-AzureADUser -Filter "userPrincipalName eq '$($_.upn)'"

        $secureString = ConvertTo-SecureString ($_.pw) -AsPlainText -Force

        Set-AzureADUserPassword -ObjectId $user.ObjectID -Password $secureString -ForceChangePasswordNextLogin $true

    }