How do I turn my excel workbook into a commercial program?
First of all, there is no fool-proof method to completely secure an MS-Excel workbook. You can use the Protection feature and set a Password, but there are ways of getting around this. And have you searched on the Internet to see if there is already a Template that somebody else has created that is very similar to what you have made? It is rare these days for someone to create a workbook so unique that others have never seen such, and are willing to pay for it. You could add some VBA code to it that would check the Computer-Name and/or the Windows User-Name at the point of opening the workbook, and exit out if it does not match what it thinks there should be there. .
