Format nested Excel formulas
Paste a long SI / SI.CONJUNTO formula and it reorders it into readable, indented lines — verifying, token by token, that the logic stays identical — and warns you if the result goes over Excel’s 8192-character cell limit.
Limitations
Nothing is ever added, removed or reordered in your formula — only line breaks and indentation are added so it reads better. Before showing any result, it verifies the formatted version is exactly equivalent to the original; if anything doesn’t match, it formats nothing and reports the error.
It also recognizes array formulas with braces ({1;2}), references to another workbook ([Libro.xlsx]Hoja1!A1), the percent operator over any expression (50%, (A1+B1)%) and decimal numbers with a comma when the argument separator is ; (that’s how Excel in Spanish writes numbers). If something still can’t be interpreted safely, it reports an error instead of risking a bad format.