A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
If you are copying entire columns, then the hidden column is copied - but the copy of the column remains hidden.
If you copy just a portion of the columns, then when the paste is performed, the cells from hidden columns are not hidden because 'hidden' is not a property of the cells but of entire columns.
Of course, filtered values are treated differently - though they look hidden, they are not: they are not visible, which is different.