how can i import data into table using codeunit on page button

Hi All,

I am new user of Navision and i am usin NAV 2013.

Actually I am creating a table in the name of Cato Nav Integration.It has fields like cato ID, Order ID,Account,Date/Time,UID, Batch no., Qty. and now i have to import data into this table from notepad which is saved in my desktop. I don't have

use xmlport methode. I have to do this to create a button on the page and write a codeunit on the action deginer.

Anyone help me please.