Only download these files from reputable engineering forums or educational YouTube channels dedicated to civil engineering to avoid malicious macros.
Since the file is an .xlsm version, you must "Enable Content" or "Enable Macros" in Excel for the calculation buttons to work. ШЄШЩ…ЩЉЩ„ CALC ECH RACHID xlsm version
Look for the most recent release (often labeled V5.0 or 2024/2025 updates ) to ensure the formulas match the latest engineering codes. Only download these files from reputable engineering forums