Unable to open files with extension indd.icloud in InDesign on macOS

[sheidaa32856975]

Hi Community,

I really need help as I can't open my important InDesign file anymore. I tried it from the InDesign software and I tried from my Documents in Finder. The only strange this is that the document is named: ....indd.icloud and I don't understand why. But some of my documents have that and all of them won't open anymore. So for example name.indd works but name.indd.icloud doesn't work. But I can't change the name and I also don't know if that's really the problem. I added some screenshots but they are in dutch. Translation is something like:

Can't open the file. The file format may not be supported by Adobe Indesign, a plug-in for support is missing or the file is already opened in another application.

Can somebody help?

{Renamed By MOD}

[Jewel29318378swvx]

This just happened to me...now all of my files have mysteriously developed the indd.icloud extension and I can't take it of...any answer on this???

[Reine34466971q7y8]

Thank you so much ! 
I don't know if you'll visit this page one day, but you are a true lifesaver !