# This is the full path to a test data file:
data_file_local = system.file(package="formods", "test_data", "TEST_DATA.xlsx")
# Excel files need a sheet specification:
sheet = "DATA"
# We will also attach the sheets along with it
df = readxl::read_excel(path=data_file_local, sheet=sheet)
# Regular sorting:
sort(unique(df$Cohort))
FM_pretty_sort(unique(df$Cohort))
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