Any chance rowEX() could be added to simplexls?

[vce-wabbott]

I was working an XLS file that has cell formulas which return as zeros when I use $xls->rows(). It would be helpful to have a slimmed down version of SimpleXLSX's rowEX() function to detect when formulas are in play. Getting any other information about the cell would of course be a nice bonus.

[shuchkin]

there strange formula binary format :(