From Explore, you can specify which file types to display in the content area.
To display specific file types:
Select View, then Display Items of Type, and then select an option:
All Files—Displays all files in Explore
Select from a list of file type groups—See step 2.
Standard—Displays standard files, see Standard Files.
Optional: For the list of file type groups, you can select only one file type group from the list.