Export (PHPR7) incorrect values in Excel

Please let me know how to fix this error in Export data to Excel.

1. In Edit/Custom the following script is inserted: if ((($value== '+++') or ($value == '+-+') or ($value == '-++')))
   
   $color="black";
   
   else
   
   $color="red";
   
   $value="<font color='$color'>$value</font>";
   
2. When Export to Excel is executed I received in Excel the following data: <font color='red'>---</font> but not +++ or -++ in colors.
   I did the same for PHPR 5.3 and all is OK, so PHPR7 have a bug.
   
   I need to find out how to fix this.
   Thanks for help.
   Jerry