Describe the bug
When complexColumns are included, the Excel downloaded data is different from the screen.
To Reproduce
Steps to reproduce the behavior:
조회 click
다운로드 click
Expected behavior
Excel must be downloaded as shown on the screen.
Screenshots
![image](https://github.com/nhn/tui.grid/assets/144105919/269e93df-0272-4490-87bc-e2f737efa7f3)
![image](https://github.com/nhn/tui.grid/assets/144105919/fa10ab18-30a6-4c9d-8be2-946a25c8134a)
**Desktop (please complete the following information):**
- OS: Windows 10 Enterprise
- Browser : chrome
- Version [ 116.0.5845.96]
**Smartphone (please complete the following information):**
N/A
**Additional context**
Add any other context about the problem here.
Describe the bug When complexColumns are included, the Excel downloaded data is different from the screen.
To Reproduce Steps to reproduce the behavior:
Expected behavior Excel must be downloaded as shown on the screen.
Screenshots