Reads the sensitivity label from an Excel file using openxlsx2::wb_get_mips. Returns the label name, 'no label' if none is found, or errors if unexpected.
Examples
if (FALSE) { # \dontrun{
# Read the sensitivity label from an Excel file
# Returns the label name or "no label" if none exists
label <- read_sensitivity_label("myfile.xlsx")
print(label) # "Personal"
} # }