What is the syntax to emulate re-editing a cell, as in pressing F2 then Enter ?

I have a series of formulas that were built with vba code, but some of the
cells that these were created in must have been formatted as text since the
formulas did not calculate. The formulas are syntactically correct, but I
need to get Excel to treat them as formulas instead of text.

I have changed the formatting to general, and I want to run a simple macro
on the range to force an edit and re-enter of each cell in the range... but I
cannot remember the vba method (or maybe a property?) to accomplish this.

Any help appreciated.

Thanks,

TK