Getting formula of another cell in target cell

How does one cell obtain the formula of another cell as text without using VBA? I can see this question has already been asked many times and the answer is always to write a custom function in VBA.

However, I found a post made in 2006 which claimed to have found the non-VBA solution but the link provided in that post is already broken.

=FormulaText(Reference) will do the trick Documentation

There is nice way of doing this without VBA. It uses XL4 macros (these are macros, but it is not VBA, as asked).

With reference to the figure 1, cells A2:A4 contain usual formulas.

1. Going to Formulas -> Define Name, I defined two named ranges (see fig. 2), with the information shown in cells A6:B8.

   

2. Enter in cell B2 =FormulaAsText. This will retrieve the formula in cell A2 as text.

   Explanation: The named range FormulaAsText uses =GET.CELL(info_type,reference). In this case, ìnfo_type = 6 retrieves the formula, and reference = OFFSET(INDIRECT("RC",FALSE),0,-1) uses the cell with 0 rows and -1 columns offset from the one the formula is used in.

3. Copy B2 and paste into B3:B4. This will show formulas in A3:A4. Cell A4 shows that the worksheet function CELL only retrieves values, not formulas (as opposed to GET.CELL).

4. Since FormulaAsText gets the formula from a cell at fixed offset (0,-1) from the current, I defined another range FormulaAsText2, which uses an offset (rows,cols) read from the worksheet itself. Cells D2:D4 contain =FormulaAsText2. Thus, cell D2 shows the contents of cell B3 (=OffSET(D2,1,-2)), which is FormulaAsText. cells D3:D4 show the contents of themselves. This adds some flexibility. YMMV.

PS1: The essence was taken from http://www.mrexcel.com/forum/excel-questions/20611-info-only-get-cell-arguments.html

PS2: Tim Williams mentioned in a comment "the old XLM GET.FORMULA()". This answer is possibly related (not the same, since this one uses GET.CELL()).

PS3: A simple VBA solution is given, e.g., in http://dmcritchie.mvps.org/excel/formula.htm

EDIT: Complementing this nice answer, the worksheet function FormulaText is available for Excel 2013 and later.