Well, what is the onerous part - renaming the file or going through
the Text Import Wizard?
If you want to avoid renaming the file, you can click the Data tab,
then in the Get External Data section (XL2007 menus) click on From
Text, then navigate to and identify the file that you want, and this
will take you into the Text Import Wizard, and you can use this as
described before.
If you start to record a macro before you do this and then stop
recording when you have imported the data, then you should be able to
edit the macro to allow you to select the file each time it is run
(and perhaps save it at the end with a name derived from the original
file). Then in future you can just run the macro, select the file and
it will be imported as you would like it, then saved.
Hope this helps.
Pete