My girlfriend got handed som data in the form of plain unformatted text. It should have been a presented in a table like fashion, however it was generated by some python or terminal/cmd run program, and each column or cell was separated by a single tab character. (You know the key above the caps-lock that we dont tend to use in programming cause it behaves inconsistently between editors).
Anywhom, this is a hacked together piece of javascript, that reads trough a file, creates a table row pr line, and a column/cell pr tab. It will however only work right if there is the same amount of tabs in each line.
Select file, click the button, and then you can select all, copy it and paste it into excel.