Prevent columns between two highlighted columns from being copied to a text file

[Ian Y]

I need to copy several non-adjacent columns to a text file. The problem is that, columns which are between the highlighted columns are copied to the text file, too.

For example, after I used the Ctrl key and the left mouse click to highlight column A and C, I pressed Ctrl + C to copy them. But when I pasted the copied values into a text file, I saw column B was pasted, too. I don't want column B in that case.

 

[Ian Y]

Cheers, at least now @SunnyAlv (or other potential helpers) have something to go on.
Can you confirm that every column has data down to the same final row?

Not every cell has data. Some cells might be empty.