SA uploads BEAUTIFUL word docs with bullets and DESTROYS the docs... and I can't fix

You spend literally days getting all the pagination correct, bullet points PERFECT and it looks awesome.  

You hit UPLOAD WORD doc on SA... and GONE!!!!  pagination destroyed, bullets removed, bullets added and I can't rework them in the SA edit feature

anyone know why /  how this happens and how to prevent?

Every doc takes 3 hours too long trying to fix what they remove....