The sparks used in this project were created with the BCC Sparks effect from the Boris FX Continuum Complete collection of effects. If you don't own that collection, you can download a demo copy from http://www.borisfx.com to use in this section. Or, you might be able to create a similar effect using the Particle Playground effect in After Effects Professional (but you're on your own, in that case). Follow these steps:
Save and preview your results. The sparks should move left to right as the logo is unmasked.