If you mean exporting each artboard to a separate file, with each of them exported in one or more of the supported export file formats, this is easily done using the Export Persona. As explained here, Slices are automatically created for each individual artboard, so all you have to do is select one or more export formats for each of them & then click the "Export Slices (n)" button at the bottom of the Slices panel to export all of them in one step.
For example, below you can see that there are slices for each of my document's 3 artboards plus the 'background' one that would include all of them in one file. Since I do not want that, I unchecked it so it won't be included in the slices export. I also set Artboard3 to export to both a high quality JPEG & an 8 bit RGB TIFF preset, & the other two artboards to export to use other export presets.
The only slightly deceptive thing about this is the button says there will be 3 exports but actually there will be 4:
