Overview: This method is basically used to prevent your data from unicode once RTF data is exported into Excel format then this issue usually occurs.
Issue Screenshot:

If you are getting your data in above format then this solution is for you, you can fix this issue by 1 simple steps.
Step1: in your RTF xml tags put below script

<fo:bidi-override direction=”ltr” unicode-bidi=”bidi-override”><?SUPPLIER_TRN?></fo:bidi-override>
Result:
