The VCell (https://vcell.org/) application can export spatial simulation results into multiple formats, with .N5 (https://imagej.net/libs/n5) being one of them. N5 exports are stored remotely on VCell servers, allowing applications such as ImageJ to directly access the results of these simulations and perform analyses.
Virtual Cell has special techniques for spatial simulation results so that they are visually compelling while accurate to their source data. Those automatic techniques are not implemented within this plugin, so if an export is visually different from VCell's please go to Image -> Adjust -> Brightness/Contrast, and adjust it to a point where it is similar.
XYZ: The XYZ dimensions directly correspond to the simulations XYZ.
Channel: The different channels represent the variables exported, and the last channel always represents the geometric domains for your spatial export.
Time: Time directly corresponds to the simulations time.
For VCell exports generated from your local VCell installation:
Select the appropriate export and click the "Open" button.
From N5 URL (VCell Install Not Required):