Uploading Problems

Ok, guys, have te ever had this problem cuz I dunno how to fix it: Like, when te type your stories on Microsoft Word o whatever and te use italics, like maybe a whole sentence in italics, it's all fine on the document, right? But when I carica it, all the italic and bold letters just mash together and makes everything really hard to understand.
Have any of te ever had that problem? If so, do te know how to fix it?