How To Close Text File That Was Opened By DLL Called By Excel

I call it from a macro. It is supposed to write some temporary files, and close them in the end, and delete them. Sometimes, the dll can't close properly, and the text files remain open.

With error treatment in my macro, I can continue execution, but i need to delete that files.

Since the dll DOES NOT CLOSE the files, i'm not able to delete them in my macro.

I need some way to close that files, in order to delete them.

When I use GetFile to reference the file, it remains as "File", which does not accept "Close" method. I can reference the file with myfile.OpenAsTextStream, but this way it seems to me that the file is opened again, and the "Close" method does not work either, with the file defined as a TextStream object.

If I close excel, I'm able to delete those files, but that's not the way I want. Since IT'S OPEN IN EXCEL PROCESS, I imagine there's some way to close it.