... + Substr( whorafin, 1, 2 ) + Substr(whorafin, 4, 2 ) + ".xlsx" y devuelve este error: Application =========== Path and name: D:\XBASE-PROYECTOS\EJEMPLO\ejemplo.exe (32 bits) Size: 5,065,728 bytes Compiler version: Harbour 3.2.0dev (r2104281802) FiveWin version: FWH 22.10 C compiler ...