I have a lot of equations (for faculty) written in MS Equation (button from right side) and saved it in `.docx`

format.

All good and the best until my professor told me that he has MS 2003 and I have to convert from `docx`

to `doc`

format and the equations must be editable.

I don't have enough time to rewrite all the equations in MS Equation 3.0.

Is there a way to convert from MS Equation to MS Equation 3.0 Object to be recognized and editable in Word 2003?