You can view the list of files and folders in the form of large icons, and can be changed its the icon size(ratio).
In the Settings tab
1

Go to the Settings tab and select List.
2

Select View.
3

Set it to Icon.
3-1

A file and folder list is viewed as an icon.
4

Select Icon Style to set its size(ratio).
4-1

You can select a size(ratio) of the icon on the list.
– 1:1, 3:4, 4:3
In the list
1

Tap more(…) icon on the upper right of the list.
4

Select View.
4

Set it to Icon.