when i attempt to open it it come up with an error message
System.FormatException: File is not a supported DDS format
at PaintDotNet.Data.Dds.DdsFile.Load(Stream input) in d:\src\pdn\paintdotnet\src\PaintDotNet\Data\Dds\DdsFile.cs:line 472
at PaintDotNet.Data.Dds.DdsFileType.OnLoad(Stream input) in d:\src\pdn\paintdotnet\src\PaintDotNet\Data\Dds\DdsFileType.cs:line 227
at PaintDotNet.FileType.Load(Stream input) in d:\src\pdn\paintdotnet\src\Data\FileType.cs:line 477
at PaintDotNet.Functional.Func.Eval[T1,TRet](Func`2 f, T1 arg1) in d:\src\pdn\paintdotnet\src\Base\Functional\Func.cs:line 158