Ok, here is the deal - I copied text from some online table, and in notepad it spans to multiple lines - each line per column. I wanted to grab only certain lines, and soon became too tired to do this manually. So I wrote this calculator below.
Just paste your text with multiple lines, set start line and how many lines to remove after start line. Process is repeated until you have only filtered lines. Works fine for me, hope can be useful for someone else too.