Rabbit's favorite beverage

Your best friend, the rabbit, was coming out of his burrow one morning and you happened to be nearby!

"Good morning, friend!" said the rabbit.

"Good morning!"

"I've got a puzzle for you... Think you can get me something to drink?"

"Hmm... What do you mean?" you replied.

The rabbit merely chuckled and gave you a small scrap of paper. With that, he continued to burrow into the ground!

EXEREDSEEND.HREENRRREVHS.TETTT.SEO.FUEHHHI......OEI

What did the rabbit want to drink?

Hint 1:

Since someone has already figured out the first part, I won't bother with hints about that. For the second part, a more general form of the numbers would be 6 4 1 3 3 7, though that won't be exactly what the rabbit wanted to drink!

• It always makes me happy when I'm online and see a new puzzle of yours pop up, they are always so clever and unexpected! Commented Aug 31, 2020 at 14:55
• @Sciborg -- That's really nice of you! I'm glad you enjoy them and you just made my day! Commented Aug 31, 2020 at 14:57
• You might not tell of course, but is there rot13(nalguvat va gur chmmyr juvpu vaqvpngrf jung gb qb NSGRE gur svefg fgrc? Ab vqrn jung bgure guvatf V pna qb jvgu gur qrpelcgrq grkg) Commented Aug 31, 2020 at 16:50
• @LukasRotter -- Good question! Once you've gotten the first step, the clues for the next step are just what you decoded. You should post a partial answer if you've gotten the first step, though! Commented Aug 31, 2020 at 16:51

Rabbit wants

Coffee (Dewey decimal 641.3373) as solved by LR

• Oh, that's what he wanted? Hmm... Thanks for letting me know, but I'm not sure I'll be giving him any! Good job, this is correct! Commented Sep 1, 2020 at 11:47
• @Voldemort'sWrath I'm assuming he got the coffee from Dunkin' Donuts Commented Sep 1, 2020 at 19:49
• @ferret -- Haha, maybe! The DD was to clue the Dewey Decimal system, though. Commented Sep 1, 2020 at 20:04

[Partial] Ok I give up, somebody else solve this please, soon I will be AFK for one hour :)

First step:

Decrypt the given ciphertext using the Burrows-Wheeler transformation, clued by the word burrow. Result:
DD.SIX.FOUR.ONE.THREE.THREE.SEVEN.THREEHERE.IS.THE
which spells Here is the DD 6 4 1 3 3 7 3
Now figure out what DD means, I guess?
Here's what I've already tried with the number 6413373:
- A1Z26, A0Z25
- Dec -> Hex, Oct -> Hex
- Cryptogram
- (rab)bits don't produce alphanumeric characters when interpreted as ASCII
- Maybe an ID of some sort? Definitely not of a question on this site, way too large.

• Great start! Yes, you have to figure out what DD means! Commented Aug 31, 2020 at 17:36
• Added a hint in case you wanna take a stab at the next part! Commented Aug 31, 2020 at 21:33