sample.txt
sample.txt
sample.txt
sample.txt
sample.txt
sample.txt
sample.txt
sample.txt
^^
the above line is a find delimiter
sample.txt
sample.txt

1. Select 'txt' on the first line and delete it (ALT+D).
2. Do a Global command (ALT+G).
3. Select the period on the first line and delete it.
4. Select the '.txt' on the bottom line and copy it (ALT+C).
5. De-select by moving the arrow off of the window (onto the
   background area) and pressing a mouse button.
6. Do a Global command (ALT+G).