Talk out a formula

[kimparker0261]

For the formula below, can you talk out what the formula is saying for that cell

=IFERROR(UPPER(INDEX(Range_Desc,MATCH(ROW()-ROW($A$10),Range_Valid,0))),"")

 

[bobsan42]

Range_Desc and Range_Valid are the names of Named Ranges (row or column usually). I am guessing based on the formula that we are talking about 2 columns.
ROW() is the row number of the cell with the formula, ROW($A$10)is the row number of cell A10, so basically it is 10.
so ROW()-ROW($A$10) will be something like 23-10=13 or any other number.

MATCH will return the relative position of an item in an array (row or column) of data. So basically MATCH is looking for the relative position of a number (e.g. 13) in the named range Range_Valid.
INDEX looks for the value of the cell in a certain relative position in an array. The array is Range_Desc. Then you have to provide the number of row and column to get the value of the cell in their intersection point. Because the column value is omitted I guess it is a single column range e.g. you are looking to find what is written in row 13 (column 1 and only) of Range_Desc.
Then you take this Value (usually a string) and convert all alphabetical characters to upper case with UPPER().

There is the possibility that the function so far result in an error. To avoid results like #N/A, #NA ME?, #REF ! etc. we use IFERROR(<some function>,"") - it will return zero length string if the function in the brackets result is some error code.