How to remove everything from a sheet (numbers, punctuation marks, empty lines) except letters in notepad ++?

Question

Regular Expressions

There is a .txt file:
Milk 50r.
Kefir 70r
Cheese 155.50r.
Cottage cheese 100 rub.
Sausage 300r.
It needs to be like this
Milk
Kefir
Cheese
Cottage cheese
Sausage

Answer 1

[[email protected]#$%?*_—=:;,.]
Now someone will answer - I'm not a great specialist.

Answer 2

Search ^([^ ]+).*Replace with $1- deletes everything in each line except the first word

Answer 3

\s\d+.+$=>Пустая строка