I was able to figure it out.
In the Page_Init, you have to put the following code for changing the text:
RadProgressArea1.Localization.UploadedFiles = "Export Progress"
RadProgressArea1.Localization.CurrentFileName = ""
But I also changed the ASP.Net code to the following:
<telerik:RadProgressManager ID="RadProgressManager1" runat="server" />
<telerik:radprogressarea id="RadProgressArea1" runat="server"
In the loop for the export process, I put the following:
' Show Progress of Export
progress.SecondaryTotal = 100
progress.SecondaryValue = intRows
progress.SecondaryPercent = Math.Round((intRows * 100) / pDataSet.Tables(0).Rows.Count)
progress.CurrentOperationText = "Record " & intRows.ToString() & " of " & pDataSet.Tables(0).Rows.Count.ToString
At the end of the export process, I put the following code:
' Tell ProgressArea that export process is done.
progress.OperationComplete = True
This last line of code helps make the ProgressArea disappear.