Change of data type in Include

Hi,

all I found out that there is an include program in which all the Data type for that Function module is present, However it states that

**********************************************************

• THIS FILE IS GENERATED BY THE FUNCTION LIBRARY**

• NEVER CHANGE IT MANUALLY, PLEASE!**

**********************************************************

DATA ORG_XY TYPE CHAR30.

Then how to go about Changing it,I want to make it char65 Its a Remote Function Call.