Error 0x80030050

Value: -2147286960 | 0x80030050 | 2147680336

What does it mean ?

STG_E_FILEALREADYEXISTS  
%1 already exists.
Value: 80 | 0x0050 | 0b0000000001010000

Where does it come from ?

FACILITY_STORAGE  
OLE Storage. For status codes returned from IStorage or IStream method calls relating to structured storage. Status codes with code (lower 16 bits) values in the range of Windows error codes (that is, less than 256) have the same meaning as the corresponding Windows errors
Value: 3 | 0x003 | 0b00000011

Other Errors for FACILITY_STORAGE