Why wrap the cell references in brackets and place a dot in Formula?

[pablo-angulo]

odswriter was not working for me, the Formulas would not be interpreted by Libreoffice 6.4.7.
But removing the code that wraps the cell references in brackets and add a dot before cell references in the Formula class fixed the problem.

        # DO NOT Wrap cell refs in square brackets.
#        s = re.sub(r"([A-Z]+[0-9]+(:[A-Z]+[0-9]+)?)", r"[\1]", s)
        # DO NOT Place a . before cell references, so for example . A2 becomes .A2
#        s = re.sub(r"([A-Z]+[0-9]+)(?!\()", r".\1", s)