Once you download the file, you will need to open the following files with a different program which are all free to download:
To build it, cut it out and keep the glue tabs onto the piece. The glue tab is where you will put glue, and then you have to figure out where that glue tab should attach to, sortof like a jigsaw puzzle.
What materials to use?
-A printer with separate ink cartridges for every color*
-Cardstock. Anything heavier then 120gms should do, but above 170gms it's getting rather thick.**
- A small pair of scissors***
-A knife+cutting mat***. You don't want to ruin your moms desk after all
-Glue. Any fast and cleardrying glue will do. I personally use PowerPritt universal Gel.
-Toothpicks. You'll need these to apply the glue
-A pair of tweezers. You'll really need these for smaller parts.
-A scoring tool. Not really neccessary, but does make better folds. You can also use an empty ballpen for this. Just make sure it's really empty.
*If you're serious about this hobby, you might want to consider buying a good printer. They aren't too expensive now a days, and a printer with separate cartridges will save you money in the long run. If you only have one cartridge for all 3 colors and one color runs out, you'll have to replace the whole cartridge even though 2 colors are still full.
**Some people prefer matte, some prefer glossy. I myself prefer to build with matte, but some papercrafts are nicer with a glossy look, like golden items. Note that glossy paper is heavier most of the time. When your building smaller models, you might want to use lighter paper, and when you're building a bigger model, you'll probably want some heavier paper.
***Some people prefer scissors, some people prefer to use a knive. I've seen beatiful crafts created from both methods.It's for you to find out what you like most. Still, some parts are just easier for either scissors or knives. Make sure both your scissors or knives are sharp. A dull cutting tool will make horrible cuts.
More tools and materials please check this article: Paper Model Tools and Materials
More questions please check FAQ.