Les 12 options de formatage des nombres d'Excel et leur impact sur vos données"

This text provides a detailed explanation of different number formats in Microsoft Excel. Here's a breakdown of the key points: **Number Formats:** * **General:** Displays numbers as they are entered, including decimals and scientific notation. * **Number:** Displays whole numbers without decimals. * **Currency:** Formats numbers as currency with symbols like "$" or "€". * **Percentage:** Displays numbers as percentages (e.g., 50% instead of 0.5). * **Date:** Formats dates in various ways (e.g., MM/DD/YYYY, DD-MMM-YY). * **Time:** Formats time in various ways (e.g., HH:MM AM/PM, HH:MM). * **Text:** Displays entries exactly as typed, regardless of whether they are numbers or formulas. * **Scientific:** Displays numbers in scientific notation (e.g., 9.88E+08). * **Fraction:** Displays numbers as fractions (e.g., ¾). * **Special:** Offers predefined formats for specific data types like phone numbers and social security numbers. **Custom Formatting:** * Allows you to create your own number formats using codes. **Troubleshooting:** * If a cell displays ##### instead of the entered value, it's likely due to: * **Column Width:** The column might be too narrow. Try widening it. * **Incorrect Format:** The cell's format might not match the data type. Change the format accordingly. Let me know if you have any other questions or need further clarification on specific number formats!