Windows 10 themed file folder, I use this as temporary location for receipts.
See CAD design here https://cad.onshape.com/documents/2c2fe7541680799baea7cb56/w/04b009d05419d9786423e5ac/e/f67a0cd53cef837d7fbe5aaf?renderMode=0&uiState=64570a01e1046c63f458281a
The author marked this model as their own original creation.