The letters of a column (0-based): 0 → "A", 25 → "Z", 26 → "AA", 16 383 → "XFD".
"A"
"Z"
"AA"
"XFD"
0-based column
the letters ("" for an index outside 0 … 16 383)
""
columnLetter(27); // "AB" Copy
columnLetter(27); // "AB"
1.1.99
The letters of a column (0-based): 0 →
"A", 25 →"Z", 26 →"AA", 16 383 →"XFD".