Open files and export to PowerPoint

Hi All

I have a list of file names with extension name, eg mrexcel.xls, in a tab called "list". They are excel, word and powerpoint files only.

a) How can I open these files in the exact order they are listed

AND

b) How do I open a new powerpoint file and import the contents of each file in the order they are listed there

Note: if an excel file has 3 tabs, each should be exported to PowerPoint in turn in the same order. If a word document, each page to a slide, obviously if powerpoint, slide for slide

Can the macro close all files at the end and ask you to save the new powerpoint file?

Thanks