Open access research data supporting "Internal structure of hexagonal skyrmion lattices in cubic helimagnets" accepted for publication in New Journal of Physics, 30th August 2016. Authors D. McGrouther,1 R. J. Lamb,1 M. Krajnak,1 S. McFadzean,1 S. McVitie,1 R. L. Stamps,1 A. O. Leonov,2, 3, 4 A. N. Bogdanov,2, 3 and Y. Togawa1, 2, 5, 6 1 School of Physics and Astronomy, University of Glasgow, Glasgow, UK, G12 8QQ 2 Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan 3 IFW Dresden, Postfach 270016, D-01171 Dresden, Germany 4 Zernike Institute for Advanced Materials, University of Groningen, Groningen, 9700AB, The Netherlands 5 Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan 6 JST, PRESTO, 4-1-8 Honcho Kawaguchi, Saitama 333-0012, Japan This work was supported by EPSRC grant EP/M024423/1. Dataset contains: (i) Differential Phase Contrast Images obtained from a JEOL ARM200cF Scanning Transmission Electron Microscope, which depicts lattice skyrmions in FeGe material at a temperature of 250K. Files can be opened using the image processing package Digital Micrograph, available from Gatan Inc. http://www.gatan.com/products/tem-analysis/gatan-microscopy-suite-software fig1b_DPC_near_horizontal_component_796Oe.dm3 fig1c_DPC_near_vertical_component_796Oe.dm3 fig3a_DPC_near_horizontal_component_1073Oe.dm3 fig3a_DPC_near_vertical_component_1073Oe.dm3 fig3c_DPC_near_horizontal_component_1460Oe.dm3 fig3c_DPC_near_vertical_component_1460Oe.dm3 fig3d_DPC_near_horizontal_component_1783Oe.dm3 fig3d_near_vertical_component_1783Oe.dm3 fig3e_DPC_near_horizontal_component_1938Oe.dm3 fig3e_DPC_near_vertical_component_1938Oe.dm3 (ii) A 4-dimensional dataset depicting the bright field electron cone for each scan point over an area of skyrmion lattice in FeGe at a temperature of 250K. This file is the raw data upon which figure 4 is based. The file can be opened using an image processing package which allows the importing of raw binary files. The file should be imported based on the following settings: Image size x: 256 pixels Image size y: 256 pixels Text header before each image: 384 bytes Number of images = 65536 256x256_1500cm_1.5ms_0.84ms_50um_800kx1.bin.zip Total dataset size is 3.6Gb