author and last fodify fields


Ho to change Author and last modify property in exist Excel file ?

Sorry, modifying the file properties is not supported. I don't think we will support this in xls since it is really a lot of code to change a simple property (I think that if microsoft wanted to make it more complex it wouldn't have been able) and there doesn't seem to be much demand for it. For xlsx we just haven't got time to implement it yet, but at least is doable and we will be adding this support in a future version.

But Microsoft provides a dll that allows you to change the properties xls and xlsx files:;en-us;Q224351

You can use it to change the properties of the file once it has been generated.