How to copy to clipboard html table via javascript with format?

Html table is divided on thead and tbody, but if i select it with js only tbody, content is coping without format and is inserting to excell file as a one string even if i inserts content of clipboard as html

const table = document.getElementById('stationsTable')
let range = new Range()
range.setStartBefore(table.lastChild.firstChild)
range.setEndAfter(table.lastChild.lastChild)
document.getSelection().removeAllRanges()
document.getSelection().addRange(range)
document.execCommand('copy')

How can i resolve this problem or am i doing something wrong?