SQL & PL/SQL

I am using utl_file to extract data from a text file. I am using the code like below.

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loop
UTL_FILE.get_line(input_file,data);
EXIT WHEN LENGTH(data) <=0;
IF(substr(data,92,4) = '2000') THEN
Total_Invoice_Amount:=TRIM(SUBSTR(data,366,22));
utl_file.put_line (output_file,Total_Invoice_Amount);
END IF;
END LOOP;
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at the end of file as there is no more data the line"UTL_FILE.get_line(input_file,data);" raises an exception no data found.

ORA-01403: no data found

as a result control goes to exception block & my remaining code r not geting executed.
Please help me solving this problem.