Excel file creating from free select with parameters

Creating Excel file from Oracle PL/SQL stored package.
Support Oracle Reports trigger possibilities without Oracle Reports.
Predefine language for query parameters substitution and placeholders.
Configuration parameters.

Excel sheets support for few selects.

Query text
File path
Query parameters list

Predefine hints for usage in select statements

VAR	/! VAR CHAR\|NUMBER ;!/
BEFORE	/! BEFORE {PL/SQL block}; !/
AFTER	/! AFTER {PL/SQL block};!/
EXPR	/! EXPR CHAR\|NUMBER {SQL expression};!/
IS_NULL	/! IS_NULL <:parameter> [{]string [}]; !/
TITLE	/! TITLE [{]Title [}]; !/
IS_NOT_NULL	/! IS_NOT_NULL <:parameter> [{]string [}]; !/
IIF_EXPR	/! IIF_EXPR [{] boolean expression [}] {string if TRUE} [{]string if FALSE [}]; !/
BOTTOM_SUM	/! BOTTOM_SUM [{] Total row title [}] B […]; !/
ROW_SUM	/! ROW_SUM [{] Total column title [}] A [B …]; !/