Ron de Bruin has tons of sample code:
http://www.rondebruin.nl/copy3.htm
http://www.rondebruin.nl/fso.htm

Nils Titley wrote:

I have a macro that process a existing excel file but now I need it to
process many files in a specific folder. I have open and closed files and
read and written data in C but I need to help getting started on this. Could
some one give me some starting code or point me in a good direction to find
an example.

Thanks

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Dave Peterson