Hi - digitalization of your file basically means a digital or scan copy of your file is being sent to the outland VO. So a scanned copy of your file is being sent to the outland VO, online, not an actual paper copy through a courier service. As to how long it takes....well in theory it should not take long at all, but, as we've all seen, the simplest tasks seem to take IRCC forever to do. At a guess, give yourself 4 weeks, from the time it was digitalized, for the outland VO to acknowledge receipt. This is just my own estimate, I'm in the same boat, and I'm giving myself a month before I expect to see anything from our outland VO. Hope this helps.