How to read the string of .txt and input the uitable

I want to display 0.7e9 like code variable A instead of 700000000 on uitable. What should I do?

please help me

[per isakson]

I fail to read the picture

[han han]

I want to enter [0.7e9;0.7e9;0.7e9] this matrix to my uitable

But the output is 700000000 instead of 0.7e9, and I want to show 0.7e9 in my uitable.

[Stephen23]

"What should I do?"

Set the column format.