Override Scientific format in Excel output of RTF template in BI Publisher Report

Use below syntax to achieve it, if your tag name is invoice_number


<fo:bidi-override direction="ltr" unicode-bidi="bidi-override"><?INVOICE_NUMBER?></fo:bidi-override>

Same can be used for issue in Date format changes

<fo:bidi-override direction="ltr" unicode-bidi="bidi-override"> <?period_name?></fo:bidi-override>