How to export every single tile from a rendered mosaic in a image file?

Windows version of Mazaika have a special option for that, named "Save Image sequence" but this can be easy done with Mac version as well!

It is maybe not so obvious but both Mac and Windows version has an option named Export to HTML Table

Menu File - Export Mosaic to File - Output mosaic setup screen save as HTML Table

This saves the mosaic as a simple clickable HTML Table. Corrected thumbs and large images that were used as a tiles are copied into different subfolders and there is an HTML file with layout information.

You may open this HTML file in any text editor and see where different images are.

Please note that folder with "large images" named big contains not corrected original images. These aren't the images you're looking for!

It is folder with cropped and colour corrected pictures named tmb that contains what you need! Use "thumbnail" images that are color corrected and same-size resized.

Just make these "Thumbnails" big enough for printing or whatever reason you intend to use them. Simply select large enough output size. That's all!

Please note that you may enable Add Row and Col Numbers option at Output mosaic setup screen and get large cropped and corrected images with Row and Col Numbers overprinted on them. Ready to be printed and easy to assemble into real physical mosaic.