I completely understand how stressful that message is — let’s go through what it means and what you can do.
“This file is not bound. It does not exist or you don’t have access.”
This means draw.io (diagrams.net) can’t find or open the original file in the connected storage. The app doesn’t store files itself — it only opens diagrams saved in your cloud drive (Google Drive, OneDrive, Dropbox, etc.) or locally.
So one of these is happening:
The file was deleted, moved, or renamed in the connected drive.
You’re signed into a different account or storage provider than the one that owns the file.
Your browser session lost access (expired OAuth token).
Go to the storage you originally used:
Google Drive: search for .drawio or .xml files. Also check the Trash and Recent folders.
OneDrive: search for .drawio and check Recycle Bin.
Dropbox / local folder: look in your usual save location and any backups.
If you find it there, open it from that drive (not from draw.io’s “Recent Files” list).
2. Try the Recent Diagrams listChoose File → Open Recent.
If the file still appears, hover → note the full path or link shown. That tells you which account/drive it belonged to.
If it was in Google Drive or OneDrive, make sure you’re logged into the same account that owns the file, not a shared one.
Try opening from a private browser window and reconnecting the correct account when prompted.
Go to the Confluence page that contained the diagram.
Open the Page Attachments list — the diagram should appear as a .drawio attachment.
If missing, check the page history or recycle bin (Confluence Space Settings → Content Tools → Trash).
If you were using the desktop version, look for drafts here:
Windows: %APPDATA%\draw.io\IndexedDB
macOS: ~/Library/Application Support/draw.io/IndexedDB
Recent drafts can sometimes be recovered from these folders.
If you can tell me:
Which platform you were using (Confluence, Google Drive, OneDrive, Dropbox, or desktop), and
Whether it was shared or personal,
I can give you exact recovery steps for that environment.
✅ In short: the file isn’t inside draw.io itself — it’s almost always recoverable from your connected storage or Confluence attachments once we pinpoint where it was saved.