I often need to copy and paste data from Web-pages into a spread sheet. cell-11 cell-12 cell-13 cell-21 cell-22 cell-23 ... When pasted into the spread sheet, they end up like this: cell-11 cell-12 cell-13 cell-21 cell-22 cell-23 What I want to secify, when pasting the text (paste special) is that - newline (or row break) can be selected as a column separator. - and that the pasted data has N (N=3 in this example) columns. This would save me a bunch of time in many cases. Adobe InDesign has this feature where you can convert text into tables.
Can you provide an example website to copy the HTML from? Have you tested right-click > paste special > unformatted text? That text import dialog provides many options to define the structure of the table.
(also, please test a version that is currently maintained, like 24.2)