In spreadsheet software such as LibreOffice Calc, or MS Excel, rows are numbered starting at 1, and column identifiers are assigned with a letter (A, B, C, etc.).
Is it possible to add an extra row and enumerate all columns progamatically like in the picture below?
=COLUMN()
in either, or switch Excel Options (Formulas, Working with formulas in Excel 2013) to R1C1 reference style.