Dave,

Thanks for the advice. I tried disabling the macros and also deleting them
from the file, but I am still having the same problems. I am not sure what
else could be causing this strange problem.

best,
Ned

"Dave Peterson" wrote:

Maybe there are macros that are doing this conversion.

I'd open that workbook with macros disabled (change your security to medium) and
answer No to the enable macro prompt.

If none of your formulas are overwritten, then it's time to find out why those
macros exist and if they've overstayed their welcome. (and how they should
change or if they should be deleted).

Ned wrote:

I am having an issue with an Excel model that was orginally written by some
of my predecessors at work. I do not know the complete history of the file,
but it would be extremely time consuming to recreate.

When I change certain values in the model some formulas randomly disappear
and are replaced by hard-code numbers.

The numbers are the right result of the formula, but the formulas are
overwritten with the result. If I retype the formulas they will sometimes be
fine and other will go back to a hrad-code number.

thanks for any assistence.

Ned

--

Dave Peterson