Publishing to Articulate Online from previously published version?

EEK! The audio has been deleted from my working version of an Articulate I've been working on for a long time. The presentation is done, but I need to upload it to our Articulate Online account. Here are the issues - 

1) Uploading it from the PowerPoint add-in (I'm using Presenter) doesn't work, because it doesn't have audio. The file doesn't have audio when I try to preview it either. 

2) I have 2 published copies that DO have audio (presumably before the audio was deleted?) that are "for the web" and .zip file versions. 

Is there any way to reverse-work the system so that I can publish either of the versions I have with audio to Articulate Online? Because they're both "published" I can't figure out how to open them in PowerPoint/Presenter again, so I could publish them to our Online account. 

Thank you!

Leah