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En la mayor parte de los libros de Excel que he consultado y en los cursos a los que asistí como alumno, con los que he ido aprendiendo a lo largo de los años, he notado que ciertos aspectos del programa, tal vez por más infrecuentes, no se comentan siquiera, o no están tan explicados como otros más comunes. Puede que no todo el mundo tenga que manejar demasiados datos y por ello determinadas funcionalidades del programa no se consideran de interés general para los s del programa, o parece que no se les da tanta importancia pues no está clara la ventaja de su utilización cuando se maneja un escaso volumen de información. No comparto esta opinión, puesto que desconocer hasta dónde puede dar de sí éste y cualquier otro programa que se utilice supone que, llegado el caso de enfrentarse a un caso no convencional, se plantee su solución de manera artesanal, con una pérdida de tiempo considerable en tareas que podría hacer en este caso Excel automáticamente y con una alta posibilidad de equivocarse en estos procesos manuales. En este libro he tratado de recopilar esas capacidades del programa de uso no tan habitual, que en el ejercicio de mi trabajo como Ingeniero de Caminos, para el que Excel no es sino una herramienta más, han supuesto una mejora más notable de la productividad, esto es, realizar más trabajo que antes en el mismo tiempo, o realizar el mismo trabajo en menos tiempo. Excel tiene muchas capacidades, por supuesto, pero sólo he querido incluir las que me han sido de utilidad en alguna ocasión. Con esto quiero decir que sólo he considerado, en los capítulos que componen este libro, funcionalidades que he probado por mí mismo, por lo que puedo decir que he sacado provecho de las mismas y también que he conocido y a veces sufrido sus limitaciones. Para aquellos que estén empezando o que no lleven demasiado tiempo trabajando con el programa, y para los que llevan tanto tiempo como para haber olvidado algunas cosas básicas, he incluido un recordatorio rápido de los aspectos generales más interesantes, desde mi punto de vista, tanto porque se emplearán más adelante en este libro, como porque tienen un gran potencial en sí mismos, la mayoría de las veces desaprovechado.