If you're playing Utopia (http://games.swirve.com/utopia) there is a good calculator already (http://utopia.sourceforge.net/) :). Use the Clipboard object to get the text you just copied from the browser, and afterwards you can treat the text as string. I am assuming each line is separated by Char(13) and you can probably split them into an array using the Split() function and get the data you want from the array. Here's an example from MSDN on how to use clipboard (you need the namespace System.Windows.Forms): Private Sub button2_Click(sender As Object, e As System.EventArgs) ' Declares an IDataObject to hold the data returned from the clipboard. ' Retrieves the data from the clipboard. Dim iData As IDataObject = Clipboard.GetDataObject() ' Determines whether the data is in a format you can use. If iData.GetDataPresent(DataFormats.Text) Then ' Yes it is, so display it in a text box. textBox2.Text = CType(iData.GetData(DataFormats.Text), String) Else ' No it is not. textBox2.Text = "Could not retrieve data off the clipboard." End If End Sub 'button2_Click