Opening a new table using a drop down list

put this

=IFERROR(IF($B$1="January",'January'!A3,IF($B$1="February",'February'!A3,"")),"")

in the first cell of your result data (tab data) cell A4 - in this case, copy accross to the end of your result data. If you want more months you need update formula about march, april etc.
but remeber to use apostrophe, because if you don't use it you will get Update window. It's very annoyingly