Oar file type is an OpenSimulator archive file format in which scene objects, settings and terrains of a given region are stored.
To load or import oar file to OpenSim, type the following in OpenSim prompt. Optionally, you may first want to change the region wherever you desire. The oar file will then be applied to the current region.
# load oar chateau.oar
If you load different oar files multiple times, previously loaded oar file will be overwritten, unless you create multiple regions, and load different oar files in separate regions.
If you have customized a given region, and want to save or export the region as oar file, you can do the following.
For your information, there are several useful OpenSim sites where you can find ready-made OpenSim oar files.
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