A gene counts file, containing a large list of R matrices with gene counts and cells saved in RDS format with genes as rows and cells as columns. Contains 48 datasets stored across various matrices types. This data set is adapted from the data used in Chen, X., Yang, Z., Chen, W. et al. A multi-center cross-platform single-cell RNA sequencing reference dataset. Sci Data 8, 39 (2021). https://doi.org/10.1038/s41597-021-00809-x The "mixed" cell datasets have been removed form this collection, leaving 48 of the original 72 datasets.