This page describes the OME-XML file format for Open Microscopy, defined to make it simple to move microscopy data from one site and user to another. This format is related to OME-TIFF, which was developed from it. The format is described on the OME-XML page at the Open Microscopy site.
Some sample OME-XML files are available.
The file extension is .ome.xml and the MIME Type is xxxxx.
The original paper describing the concept is Goldberg, I. G., Allan, C., Burel, J.-M., Creager, D., Falconi, A., Hochheiser, H., Johnston, J., et al. (2005). The Open Microscopy Environment (OME) Data Model and XML file: open tools for informatics and quantitative analysis in biological imaging. Genome biology, 6(5), R47. doi:10.1186/gb-2005-6-5-r47 .