  In this paper, we describe the capabilities of E3D, the Euro3D visualization
tool, to handle and display data created by large Integral Field Units (IFUs)
and by mosaics consisting of multiple pointings. The reliability of the
software has been tested with real data, originating from the PMAS instrument
in mosaic mode and from the VIMOS instrument, which features the largest IFU
currently available. The capabilities and limitations of the current software
are examined in view of future large IFUs, which will produce extremely large
datasets.
