How do I download DLC from an external drive to the xbox one

DLC cannot be transferred in that way. If you are trying to play a backwards compatible game then highlight the game on the dashboard and press the start button on your controller. From there select manage game then go to ready to install. Any available
DLC will be listed there.

Ok, but How can I do that? I can only shift the game from my xbox one to an external drive, but then I loose my downloaded game.

Or do I only need the downloaded files for the install-process?

Interesting. I have the game and all it's DLC installed on an external hard drive with no issues. The only difference I can see is that you're using an SSD hard drive where I use a plain old WD Elements.

I'm wondering if it's something to do with the nature of how SSD drives store data compared to none SSD drives.

Do you have the external drive set as the default location for all downloads/installs in the storage settings on the Xbox ?

Please tell users of the xbox one that once they allow the xbox one to format an external hard drive they will be unable to use this hard drive with there PC. I have very little interest in downloading the games i've played onto it. I mainly wanted to
download movies from my external hard drive to my xbox one for viewing movies. Same with songs (much like on the ps3 or even the xbox 360) I am very dissapointed with the download as it does not allow me to do this and futher more i now have a useless external
hard drive!

I tried your suggestion with the "When Xbox is off, turn off the storage" as unchecked. Still made no difference.

Just last night I was having issues with Split/Second recognizing my DLC for whatever reason, that's a different topic for a different time . . . ANYway, I have Split/Second and all its DLC on my internal drive, and my WD 4TB as my default download location.
I deleted all the DLC for Split/Second, again, which was on the internal drive, but left the main game on the internal drive. When I went download my ready to download items for this game, which is on the internal drive, my Xbox started to download all the
DLC onto the default drive, which is the external WD 4TB.

This is not an Xbox 360 game issue, this has been the case with Xbox One games as well. I've found two copies of the same game located on different drives, one being the default download location, the other being where I want it stored.

I would think the Xbox would be able to detect where a game is stored before downloading the game again for update reasons, or DLC, or whatever. This seems to be an internal logic issue, not a "don't have the right box checked" issue. I don't remember my
Xbox behaving this way with one external drive. But with two external drives, it now is an issue.

Thanks

B