Sheet Metal Flow Control Hood

Hello,

I was given a STEP file of a flow control hood for a material handling system that we need to replace.  It needs to be converted to sheet metal for fabrication.  I've been using Solidworks for about 5 years now and don't have a lot of experience with sheet metaling anything that is complicated.  I've attached the part file, any help would be greatly appreciated.  

Edit:  I should have said this before, the part file was saved in Solidworks 2020 SP3.  I've also attached a STEP file

SolidworksSheet Metal