Q: iCloud drive - saving other file formats

Can these be saved on the cloud drive?

You can drag and drop or copy files in any format to iCloud drive, just like you would copy files to an external drive.

See:  iCloud Drive FAQ  http://support.apple.com/kb/HT201104

With iCloud Drive, you can safely store all your presentations, spreadsheets, PDFs, images, and any other kind of document in iCloud. Documents you store in iCloud Drive will be kept up to date across all of your devices, and you can access them from your iPhone, iPad, iPod touch, Mac, or PC.

 

Here's what you can do with iCloud Drive:

• Store and access all of your documents in one place from any of your devices
• Keep files and folders up to date across all your devices
• Create new files and folders from iCloud-enabled apps
• Work on the same file across multiple apps

 

See the iCloud Drive FAQ:iCloud Drive FAQ you can use any file format as long as the file meets the size limit for Drive.

You can look on icloud.com but icloud drive on yosemite seems not to work in the moment. Check out some other threads here.