데이터 분석, 차트 작성, 전달을 위한 도구를 갖춘 Microsoft 스프레드시트 소프트웨어 제품군입니다.
Sorry for late response.
I followed your advice, but unchecking(or inactivate) was impossible due to security policy.
But finally I got a solution from your clue!
One of additional Macro program installed in my Excel program made "Ctrl+A" execute other function(e.g. Calculation or Making graphs...)
I deleted it from the list and confirmed "Ctrl+A" works well again(Select all action).
Thank you! for your kindness and patience.