This is the Electronic Appendix of the manuscript "Geochemistry and petrography of martian meteorite Northwest Africa 11115: A rare earth element-enriched olivine-phyric shergottite closely linked to Northwest Africa 1068", by M. Melwani Daswani, N. Greber, J. Hu, R. C. Greenwood, and P. R. Heck, submitted to Meteoritics & Planetary Science. Corresponding author: M. Melwani Daswani (daswani@jpl.caltech.edu) The compressed folder contains two files: 1) NWA11115_CT_scan_TIFF_substack.tif This is a TIFF image stack of the CT scan of the full NWA 11115 sample. Open in a program such as ImageJ (Rasband, W.S., ImageJ, U. S. National Institutes of Health, Bethesda, Maryland, USA, https://imagej.nih.gov/ij/, 1997-2018). 2) NWA11115_CT_scan_60FPS_JPEG.avi This is a video file of the CT scan of the same NWA 11115 sample. The TIFF stack was converted to a video file (.avi), compressed to JPEG quality, and at a rate of 60 frames per second. Open this file with software such as VLC (https://www.videolan.org/vlc/). Acknowledgements The authors acknowledge T. Boudreaux for donating NWA 11115 to the Field Museum, J. Greer and J. Holstein for help with sample preparation, L. Kööp and B. Strack for SEM support, S. Rastegar for preliminary SEM analysis, L. Dussubieux for LA-ICP-MS support, A. I. Neander and Z.-X. Luo for CT scanning and support, and J. Filiberto and A. Treiman for useful discussions. We thank Thomas Pettke for assistance with LA-ICP-MS analyzes of the pressed powder pellets at the University of Bern. GPS Division analytical facilities at Caltech and Chi Ma are thanked for the support on EMPA analysis. PRH acknowledges support from the Tawani Foundation. MMD’s portion of the work was done partly as a private venture and not in the author’s capacity as an employee of the Jet Propulsion Laboratory, California Institute of Technology. The authors declare no competing interests. EOF