Folder Properties dialog box

The folder type is listed at the top of the dialog box. It is either Standard or Custom.

Dialog box options

A Standard folder is automatically created with a project. For a Standard folder, the information in the dialog box is read-only.

A Custom folder is one you created yourself. You can change the folder name and the extensions of the files that may reside in that folder. The extensions need no period (.) before them. Separate extensions with a semicolon (;).