https://html-cleaner.com/ makes it super easy to copy from other programs such as Word, Excel and off other web sites so you can post the content into other systems such as WordPress or your company CMS.
I was trying to copy a bunch of tables out of a word document in to another cms system for a page update. The simple copy and paste just did not work because my content cot jumbled up when I pasted it in to my cms. I tried saving the table as plain text but that did not work as I lost my columns.
I wanted to be able to paste in clean simple tables converted from a word document so I just had to find something that worked well.
https://html-cleaner.com/ did the trick.