Android
In MyOffice Documents for Android, you can connect the following cloud storage services: Yandex.Disk, Dropbox, OneDrive, and Box. If your app is connected to the cloud, you can open, edit, and save your documents in the cloud.
In addition, you can go to the Devices and Clouds section > Other sources to open a document from other local and cloud storage locations available on your device. Please note that the changes to the document will only be saved on your device or in the cloud connected to your device.
iOS
In MyOffice Documents for iOS, you can connect your Yandex.Disk account. You will see its icon in the file manager. The following features are available in the app: Yandex.Disk authorization; access to files and folders in your Disk; creating, moving, copying, and renaming folders; viewing, moving, copying, and renaming files. You can only edit the files saved in your Yandex.Disk via import/export.
You can go to the On This Device section to move files between any of the cloud storage services connected to the device. You can import documents from those services to your app, edit them, and export them back. Supported cloud services: iCloud, Google Drive, OneDrive, Yandex.Disk, Dropbox, Mail.ru Cloud, and device memory.