Module address 

Cell addressing: A1 label encoding, 1-based coordinates, Excel bounds.

Excel limits: rows 1–1_048_576, columns 1–16_384 (A–XFD).

Structs

CellAddress

The address of a single cell, carrying both numeric coordinates and the A1 label.

ComparedRange

The bounding rectangle that was compared for a sheet pair.

Constants

MAX_COL

Maximum valid 1-based column index in an Excel .xlsx workbook.

MAX_COL_LABEL

The A1 label of the last valid Excel column (column 16384).

MAX_ROW

Maximum valid 1-based row index in an Excel .xlsx workbook.

Functions

cell_pos_to_a1

Convert a 1-based (row, col) pair to an Excel A1 address string.

col_to_label

Convert a 1-based column index to an Excel column label (1 → "A", 16384 → "XFD").