Depending on your activity, it is not
always necessary to save all file types. Some very large
temporary files sometimes are not useful for recovering
files (programming, video processing etc. ..). You can
choose to exclude these files from your backups. It is
also possible to back up only certain file types only if
they are important to you.
Choose whether you want to exclude certain
file types or otherwise back up only certain file types
and enter extensions involved.