Cómo funciona.
IZQUIERDA es una función fundamental de Excel. Extrae un número determinado de caracteres desde el inicio (izquierda) de una cadena de texto. Permite automatizar hojas de cálculo, simplificar fórmulas complejas y analizar datos con total precisión en Microsoft Excel y Google Sheets.
💡 En palabras sencillas.
Extracts a specific number of characters starting from the very beginning (left edge) of a text cell.
"Think of this like cutting off the first few letters of a word starting from the left side."
Sintaxis.
Notación Estándar de Excel=IZQUIERDA(texto; [núm_de_caracteres])Argumentos.
A continuación se detallan todos los parámetros aceptados por esta función.
The text string that contains the characters you want to extract.
Ejemplo:A2Specifies the number of characters you want LEFT to extract. Must be greater than or equal to zero.
Valor por defecto: 1Ejemplo práctico.
Caso de Uso Paso a PasoExtract Country Codes
Extract the first 3 characters representing the country/area code from the phone numbers in column A.
| Phone Number | Full Name | Country Code | ||
|---|---|---|---|---|
| +1-206-555 | John | — | — | — |
| +44-20-794 | Sarah | — | — | — |
| +91-982-12 | Raj | — | — | — |
=LEFT(A2, 3)Evaluates LEFT over the sample table cells, placing the verified output in cell C2:C6.
Generador de fórmula.
Abrir Asistente CompletoPersonaliza los campos de argumento a continuación para generar una fórmula lista para copiar y pegar en tu hoja de cálculo.
=IZQUIERDA()Comportamiento del resultado.
Returns "Calculated output" based on sample evaluation criteria and active cell references.
Buenas Prácticas
- Combine LEFT with FIND to extract all characters before a specific character (like a space or hyphen).
- If num_chars is greater than the length of text, LEFT returns all of text.
Errores Frecuentes
- If num_chars is negative, LEFT returns a #VALUE! error.
Compatibilidad de plataforma y versiones.
Matriz verificada con base en los motores de cálculo oficiales de Microsoft Excel y Google Sheets.
Core standard function supported across all modern and legacy Microsoft Excel versions (365, 2021, 2019, 2016, 2013, 2010), as well as Excel for the Web and Mac.
100% compatible with Google Sheets. Uses identical argument order, data types, and standard calculation logic.
Preguntas frecuentes.
Dudas TécnicasCan I use LEFT across different worksheets in Excel?↓
Yes. You can reference cells located on other sheets by including the sheet name followed by an exclamation mark, for example: =LEFT(Sheet2!A2:A10). If the sheet name contains spaces, enclose it in single quotes: ='Q1 Report'!A2:A10.
What is the most common reason for errors in LEFT?↓
Does LEFT work identically in Google Sheets?↓
Yes, LEFT is supported in both Microsoft Excel and Google Sheets with standard evaluation behavior.