i want to show code of answer of array number question (in check box mode) and multi choice question in export excel file .
instead of showing "0" and "1"

This doesn't exist. These questions are structured this way in the Limesurvey database and thus I don't see a way to change that. What you could try is create an equation question that checks what was chosen and writes it into an extra column. But with array number and multi choice, this can add a lot of columns.