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For each of these that is checked when the export is done, the plugin will scan through the output directory and determine the highest-numbered existing file; it will then increase the number by one and use that as the new output filename. So for example, if the MXS option is checked, the output Name is scene, and a file named scene_0006.mxs in is found in the output directory, the MXS file written by the plugin will be named scene_0007.mxs. This is done individually for the image, MXS, and MXI outputs, unless the Synchronize option is checked; in that case, all three outputs will be numbered using the same number, which will be the highest number found in the output directory for any of the three formats.
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