How do I open a .!ut file?

You cannot open it while it is incomplete. Let uTorrent finish the download; it then removes the .!ut suffix and the file works.

Can I rename a .!ut file to fix it?

No. It is only a partial download. Renaming will not make an unfinished file usable.

Is it safe to delete a .!ut file?

Yes, if you are giving up on the download. Remove the torrent in uTorrent and delete the file.

Why won't my .!ut file finish downloading?

Usually there are no seeders. If the seed count stays at zero, the torrent cannot complete.

What Is a .!UT File?

uTorrent left a .!ut file and it will not open. It is a partly downloaded torrent file. Here is how to complete it or remove it safely.

What a .!ut file is

A .!ut file is a partial download created by uTorrent (and BitTorrent). While a file is still downloading, uTorrent stores the incoming data with a .!ut suffix and drops the suffix once the file is 100% complete.

Why you have one

The torrent has not finished. The download may be paused, waiting for seeds, or stopped because uTorrent was closed. The .!ut file contains the pieces downloaded so far.

How to open or finish it

Do not try to open a .!ut file directly — it is incomplete. Open uTorrent, make sure the torrent is active, and let it reach 100%. When it completes, uTorrent removes the .!ut suffix and the file becomes usable. If the torrent is missing from uTorrent, re-add the .torrent or magnet link and point it at the same folder so it can finish the existing pieces.

Is it safe to delete?

Yes, if you are abandoning the download. Remove the torrent from uTorrent and delete the .!ut file to reclaim the space. Keep it only if you still intend to finish downloading.

How to handle a .!ut file by OS

Windows / macOS: the behaviour is identical — finishing the torrent in uTorrent/BitTorrent is the only way to turn a .!ut into a working file. Renaming it will not help.

Common problems

A .!ut that never completes usually means there are no seeders. Check the torrent's seed count; if it stays at zero, the file cannot finish and the .!ut is safe to delete.