Excel VBA: copy lots of columns

I´d like to copy all data from a Sheet to another sheet of another new Excel file. I have tried this:

Set wkb = Workbooks.Add
wkb.SaveAs myNewFile
ThisWorkbook.Worksheets("Sheet 2").Activate
Set Ticker = ThisWorkbook.Worksheets("Sheet 2").Range("A1").CurrentRegion
Ticker.Copy
wkb.Worksheets(1).Activate
Cells(1, 1).PasteSpecial xlPasteAll
wkb.Save
wkb.Close

The problem I´ve found is that it won´t work when there are a great amount of columns (for instance, from A to OV). Do you know other way to to this?