Delete contents of top level folders

Hi
We have a folder on the server that we use to exchange files between users.
That 'Exchange' folder has subfolders of each project that looks like this:
- Exchange Folder
--> Subfolder Project1
-->--> File1
-->--> File2
-->--> File3
--> Subfolder Project2
-->--> File4
-->--> SubfolderA
-->-->--> File5
--> Subfolder Project3
-->--> File6
We'd like to keep Subfolder Project1, Project2, Project3 but auto-delete the contents under each of the folder at end of Friday each week. So users can continue to use the respective project folders the following week.
How do we do that in Hazel?
Thanks.
We have a folder on the server that we use to exchange files between users.
That 'Exchange' folder has subfolders of each project that looks like this:
- Exchange Folder
--> Subfolder Project1
-->--> File1
-->--> File2
-->--> File3
--> Subfolder Project2
-->--> File4
-->--> SubfolderA
-->-->--> File5
--> Subfolder Project3
-->--> File6
We'd like to keep Subfolder Project1, Project2, Project3 but auto-delete the contents under each of the folder at end of Friday each week. So users can continue to use the respective project folders the following week.
How do we do that in Hazel?
Thanks.