I have a formula in Excel that evaluates the l_x's (number of lives aged x) in mortality data:

```
=IF(J3>J2,"l_x increased",IF(J3/J2-1>=devianceThreshold,"Deviance too high",""))
```

Accross the spreadsheet I refer to the l_x's as lx, where the x is a subscript.

When I press CTRL + SHIFT + F, nothing happens.

Is there a way to make the x a subscript in a formula, like the one above?

It's not a big deal if it can't be done, but nevertheless it would be nice, from an aesthetic point of view.