Documentation‎ > ‎Tutorials‎ > ‎Written Tutorials‎ > ‎  3.
Advanced ePMV tutorials  Load a volumetric file  In this case
we'll load a 3D density map of a Nuclear Pore Complex (NPC)
derived from single-particle Electron Microscopy   1. Visit the
Electron Microscopy Data Base   2. Click Basic Search   4. Click
on entry 1097   5. Click Map Information   6. Click to download
then unzip emd_1097.map.gz   8. Open ePMV   9. [If using
ePMVv0.4.5 or newer, skip this step] Load a molecule, e.g., 1crn
to trigger needed functions (temporary glitch fixed in 0.4.5)
10. Unfold DataPLayer   11. In Data Player panel, Browse to your
.ccp4 file to load it   12. Since the EMDB file should be
formatted with proper headers, the map should load at a correct
scale compared to any molecules in the scene (often shockingly
large)     1. Its wise to confirm this scale simply by making a
scale bar with a cube that is the length of your EMDB molecule
(find dimensions of that molecule with a web search or by asking
your content expert)