In Totara, each user has a private files area for uploading and managing a set of files.
The private files area is accessible via Profile > Manage private files... or the Private files block. If the private files repository is enabled by a Site Administrator, it is available as a source within the filepicker when selecting files to use in a course.
To add a file to your private files area:
Alternatively, you can drag and drop a file into the designated area.
Uploaded files may be downloaded, renamed, moved or deleted by clicking the icon next to the file. After making any changes, remember to click the Save changes button.
The size limit for each user's private files area is set by a Site Administrator.
Site Administrators can do this by navigating to Security from the site administration menu, then changing the User quota setting.