When you upload files using the Multi File Upload or Zip File Upload tools, you’re asked to select a document upload profile. It’s in this profile that document name and revision settings are controlled.
Once you select a document upload profile from the dropdown menu, click the View/Edit Profile link beside it. You’ll see the Upload Information page.
Find the Use filenames as document numbers checkbox. It will be checked. Beside it you’ll see an example of how Aconex will treat the documents you upload, splitting out the document name and revision from the filename.
If you don’t want to use this option, create a new upload profile to use when you add documents to Aconex, and leave the Use filenames as document numbers checkbox unchecked.