Description

Regarding these issues：

1. "can't transfor numeric column" , e.g. string column
2. all empty column in Excel
3. “I am ￥￥￥” in csv_colunm_foramt

How Has This Been Tested?

using related excels

Snapshots:

Include snapshots for easier review.

Checklist:

• [1] My code follows the style guidelines of this project
• [1 ] I have already rebased the commits and make the commit message conform to the project standard.
• [1 ] I have performed a self-review of my own code
• [ 1] I have commented my code, particularly in hard-to-understand areas
• [1 ] I have made corresponding changes to the documentation
• Any dependent changes have been merged and published in downstream modules