It appears to be a VS 2012 project that I was not able to open with my 2010.
Nevertheless the compiled exe exists and I could run it with an error message:
"System.Data.OleDb.OleDbException (0x80004005): 'C:\Users\AndrewB\Documents\Visual Studio 2012\Projects\SheetMetalCostingUI\SheetMetalCostingUI\Database\CostingDB.accdb' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides."
Hope you find this feedback helpful.
The GUI appeared and was too tall to fit on my 1024 x 768 screen.
But I will definitely try to open the project in VS 2012, try to rectify the error and make use of the program.