Yes, but not directly from Teams itself. Files in a Teams channel are actually stored in the team’s SharePoint site, and files shared in a chat end up in the sender’s OneDrive. QlikView doesn’t connect to “Teams,” but it can read Excel files once you expose them through those locations. The common approaches are:
Download or sync the file to a local folder with the OneDrive client so QlikView can point to it.
Map the SharePoint library as a network drive (works, but OneDrive sync is usually more stable).
Automate it with Power Automate or a script that copies the Excel into a folder QlikView can always reach.
So short answer: you can do it, just not “directly from Teams” — you go through SharePoint/OneDrive.