If you prefer to use the "Import Data" wizard (which I do too), you can select "Microsoft Excel Workbook on PC File Server" under the "Select a data source from the list below" pull down menu when it asks you to select an Excel file to import, do not use the default Excel xlsx, xls choice. This will lead you through importing xls, xlsx files. I think PC File Server is installed by default by I could be wrong.
... View more