A1_to_RC                Convert A1 positioning notation to R1C1
                        notation
RC_to_A1                Convert R1C1 positioning notation to A1
                        notation
anchored                Specify cell limits via an anchor cell
as.range                Convert a cell_limits object to a cell range
cell_cols               Specify cell limits only for columns
cell_limits             Create a cell_limits object
cell_rows               Specify cell limits only for rows
cellranger              cellranger
letter_to_num           Convert column IDs from letter representation
                        to integer
num_to_letter           Convert column numbers to letter representation
