Shape files can be viewed in ArcExplorer without conversion.
A free Shape file viewer (ArcExplorer) is available for several platforms from the ESRI web site. Get ArcExplorer viewer now.
(.e00) files must be converted before use in ArcExplorer.
Export (.e00) files can be converted into native ArcInfo coverages and opened in the free viewer ArcExplorer. The conversion software and viewer (see above note) are available for several platforms from the ESRI web site. Get Conversion software.