GIF creation from CorelDRAW

Hi everyone here on the forums!

I hope someone will be able to help me out here.

So, I have this file here created in draw (it's a popup for a website I'm working right now), and i want to animate it a little bit, something like that the orange box should 'grow' or move from the right side to the left (I wanna create a GIF file).

So my question is divided in 2 parts:

1. Which animation program in general will be the best to work together with Corel draw for this kind of work, and will easily import the Corel file or exported jpeg's or other format, to easily create a 'simple' gif.

2. Please give short instructions in simple steps how to get it done (import, simple animation creation, export).

Thanks in advance!