How do i ignore letters in a formula?

[ineedhelp]

I'm using the formula below, but, it only works on a single cell. I need to
make it work for certain column?

=LEFT(MID(A1,MIN(SEARCH({0,1,2,3,4,5,6,7,8,9},A1&"0123456789")),MAX(SEARCH({0,1,2,3,4,5,6,7,8,9},"0123456789"&A1))),SUMPRODUCT(--ISNUMBER(--MID(A1,ROW(INDIRECT("1:"&(LEN(A1)))),1))))

 

[daddylonglegs]

I don't think that formula ignores letters, as such. If you have a
single number in A1 it will exract that, e.g. it will take 342 from
"xyz342abc". Is that what you want to do?

 

[ineedhelp]

I want to be able to add a column with mixed numerals. For example: The sum
of A2:A34 with the values in the cells being 1B or 1F or so.