File saving configures how files are saved during automatic file backups. To add or modify, click the Settings icon in the left sidebar and locate the Excluded Files section:
Configuring the file saving can be useful in courses that have a large folder generated by a package manager. Here is an example:
This will exclude the node_modules folder from being saved:
As you you can see in the file tree above, this folder contains a large number of folders. By excluding the folder from being saved, you can avoid exceeding the limit. See this how-to for more information.