A simple way to convert your MTGO DEK files to other popular formats.

$ npm install pile.coffee -g

$ pile ~/path/to/mydeck.dek

DEK (MTGO Default export option)

<?xml version="1.0" encoding="utf-8"?>
<Deck xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <NetDeckID>0</NetDeckID>
  <PreconstructedDeckID>0</PreconstructedDeckID>
  <Cards CatID="17923" Quantity="2" Sideboard="false" Name="Aphetto Dredging" />
  <Cards CatID="49159" Quantity="4" Sideboard="false" Name="Doom Blade" />
  <Cards CatID="35284" Quantity="4" Sideboard="false" Name="Frenzy Sliver" />
  <Cards CatID="38612" Quantity="2" Sideboard="false" Name="Terror" />
  <Cards CatID="43393" Quantity="4" Sideboard="false" Name="Undying Evil" />
  <Cards CatID="39736" Quantity="4" Sideboard="false" Name="Geth's Verdict" />
  <Cards CatID="20367" Quantity="3" Sideboard="false" Name="Echoing Decay" />
  <Cards CatID="49579" Quantity="4" Sideboard="false" Name="Predatory Sliver" />
  <Cards CatID="9527" Quantity="4" Sideboard="false" Name="Muscle Sliver" />
  <Cards CatID="35286" Quantity="4" Sideboard="false" Name="Virulent Sliver" />
  <Cards CatID="45466" Quantity="7" Sideboard="false" Name="Swamp" />
  <Cards CatID="45456" Quantity="4" Sideboard="false" Name="Swamp" />
  <Cards CatID="45442" Quantity="5" Sideboard="false" Name="Forest" />
  <Cards CatID="49060" Quantity="3" Sideboard="false" Name="Terramorphic Expanse" />
  <Cards CatID="9475" Quantity="4" Sideboard="false" Name="Lotus Petal" />
  <Cards CatID="12585" Quantity="2" Sideboard="false" Name="Unearth" />
  <Cards CatID="45460" Quantity="2" Sideboard="true" Name="Naturalize" />
  <Cards CatID="37889" Quantity="2" Sideboard="true" Name="Pyroblast" />
  <Cards CatID="28041" Quantity="2" Sideboard="true" Name="Hydroblast" />
  <Cards CatID="27955" Quantity="2" Sideboard="true" Name="Dust to Dust" />
  <Cards CatID="45464" Quantity="2" Sideboard="true" Name="Plains" />
  <Cards CatID="20367" Quantity="1" Sideboard="true" Name="Echoing Decay" />
  <Cards CatID="45480" Quantity="1" Sideboard="true" Name="Island" />
  <Cards CatID="45450" Quantity="1" Sideboard="true" Name="Mountain" />
  <Cards CatID="38612" Quantity="2" Sideboard="true" Name="Terror" />
</Deck>

DEC (Decked Builder)

2 Aphetto Dredging
4 Doom Blade
4 Frenzy Sliver
2 Terror
4 Undying Evil
4 Geth's Verdict
3 Echoing Decay
4 Predatory Sliver
4 Muscle Sliver
4 Virulent Sliver
7 Swamp
4 Swamp
5 Forest
3 Terramorphic Expanse
4 Lotus Petal
2 Unearth
SB: 2 Naturalize
SB: 2 Pyroblast
SB: 2 Hydroblast
SB: 2 Dust to Dust
SB: 2 Plains
SB: 1 Echoing Decay
SB: 1 Island
SB: 1 Mountain
SB: 2 Terror

TXT (Deckstats.net)

2 Aphetto Dredging
4 Doom Blade
4 Frenzy Sliver
2 Terror
4 Undying Evil
4 Geth's Verdict
3 Echoing Decay
4 Predatory Sliver
4 Muscle Sliver
4 Virulent Sliver
7 Swamp
4 Swamp
5 Forest
3 Terramorphic Expanse
4 Lotus Petal
2 Unearth

//Sideboard
2 Naturalize
2 Pyroblast
2 Hydroblast
2 Dust to Dust
2 Plains
1 Echoing Decay
1 Island
1 Mountain
2 Terror

TXT (BBCode formatted for forums.mtgsalvation.com)

[DECK= BG Slivers]
2 Aphetto Dredging
4 Doom Blade
4 Frenzy Sliver
2 Terror
4 Undying Evil
4 Geth's Verdict
3 Echoing Decay
4 Predatory Sliver
4 Muscle Sliver
4 Virulent Sliver
7 Swamp
4 Swamp
5 Forest
3 Terramorphic Expanse
4 Lotus Petal
2 Unearth

Sideboard
2 Naturalize
2 Pyroblast
2 Hydroblast
2 Dust to Dust
2 Plains
1 Echoing Decay
1 Island
1 Mountain
2 Terror
[/DECK]

CSV

Count,Card,Sideboard,
"2","Aphetto Dredging","false",
"4","Doom Blade","false",
"4","Frenzy Sliver","false",
"2","Terror","false",
"4","Undying Evil","false",
"4","Geth's Verdict","false",
"3","Echoing Decay","false",
"4","Predatory Sliver","false",
"4","Muscle Sliver","false",
"4","Virulent Sliver","false",
"7","Swamp","false",
"4","Swamp","false",
"5","Forest","false",
"3","Terramorphic Expanse","false",
"4","Lotus Petal","false",
"2","Unearth","false",
"2","Naturalize","true",
"2","Pyroblast","true",
"2","Hydroblast","true",
"2","Dust to Dust","true",
"2","Plains","true",
"1","Echoing Decay","true",
"1","Island","true",
"1","Mountain","true",
"2","Terror","true",

• Add other formats
• Add the ability to specify a single format to export
• Add the ability to specify the path you'd like to export to
• Decouple and turn into a quick web service