Seems like you have the file opening alright.
After that you should set a workbook variable to hold the reference to the opened workbook and then copy the source worksheet into that file. A possible problem is that any active formulae on the source worksheet which refer to other tabs in its original parent workbook will continue to refer to the original workbook (i.e. the two workbooks will be linked). This isn't an issue if you don't have any off-sheet formula references.
Will copy your 944300 sheet after the last sheet of target file strFileName which you opened in the last line of your posted code. Repeat for the others.
You'll probably want to add
each time to close your target workbook saving changes after each copy, assuming you don't want them left open.
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