Thanks for your posting and using Aspose.Cells for .NET.
For moving column, please refer to these articles for a workaround.
First, you will copy column, then you will delete the source column.
You cannot save your Ms-Excel file into Ms-Word file using Aspose.Cells for .NET.
This is the reason SaveFormat does not have type for .doc
Please post such a question in Aspose.Words forum, probably, they could provide you some alternative or a workaround.
Forums - Aspose.Words Product Family
In order to get rid of Evaluation Warning worksheet, you will need to purchase and use a license.
Please post your license related question on Aspose.Purchase forums. They will help you asap.
Forums - Aspose.Purchase