Audacity hangs while loading a file

Windows 10
Audacity 3.0.0
I was working with Audacity recording and editing some dialog when it froze. I eventually killed the process. When I restarted it offered to recover the previous session and I accepted. It froze during recovery. I then skipped the recovery and tried to open the file that was saved before the crash. This also froze.
I have the files if you would like them for debugging but when I tried to attach them I was told they were too large. 100,010 KB.

What format is the file?
Where is the file stored on your computer? (“Cloud” storage, such as OneDrive / Google Drive and similar can cause problems for Audacity)

Is it just that one file that crashes Audacity, and does it cause the crash every time that you try opening / importing it?