Module headers

Functions

• build_a1_headers
  Assign keys with A1+ notation
• build_c01_headers
  Assign keys as c + zero-padded number
• build_header_keys
  Build header keys from the first row of a CSV file or headers captured from a spreadsheet
• to_a1_col_key
• to_c01_col_key
• to_head_key
• to_head_key_default
• to_padded_col_key
• to_padded_col_suffix