diff --git a/EgwCoreLib.Utils/FileHelpers.cs b/EgwCoreLib.Utils/FileHelpers.cs
new file mode 100644
index 0000000..cc94800
--- /dev/null
+++ b/EgwCoreLib.Utils/FileHelpers.cs
@@ -0,0 +1,50 @@
+namespace EgwCoreLib.Utils
+{
+    /// <summary>
+    /// Utility per gestione Files
+    /// </summary>
+    public class FileHelpers
+    {
+        #region Public Fields
+
+        public static readonly string[] SizeSuffixes = { "bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
+
+        #endregion Public Fields
+
+        #region Public Methods
+
+        /// <summary>
+        /// Calcola dimensione file con corretta unità di misura secondo dimensione
+        /// </summary>
+        /// <param name="value">lunghezza file (in byte)</param>
+        /// <param name="decimalPlaces">Num di cifre decimali richieste</param>
+        /// <returns></returns>
+        /// <exception cref="ArgumentOutOfRangeException"></exception>
+        public static string SizeSuffix(Int64 value, int decimalPlaces = 1)
+        {
+            if (decimalPlaces < 0) { throw new ArgumentOutOfRangeException("decimalPlaces"); }
+            if (value < 0) { return "-" + SizeSuffix(-value, decimalPlaces); }
+            if (value == 0) { return string.Format("{0:n" + decimalPlaces + "} bytes", 0); }
+
+            // mag is 0 for bytes, 1 for KB, 2, for MB, etc.
+            int mag = (int)Math.Log(value, 1024);
+
+            // 1L << (mag * 10) == 2 ^ (10 * mag) [i.e. the number of bytes in the unit
+            // corresponding to mag]
+            decimal adjustedSize = (decimal)value / (1L << (mag * 10));
+
+            // make adjustment when the value is large enough that it would round up to 1000 or more
+            if (Math.Round(adjustedSize, decimalPlaces) >= 1000)
+            {
+                mag += 1;
+                adjustedSize /= 1024;
+            }
+
+            return string.Format("{0:n" + decimalPlaces + "} {1}",
+                adjustedSize,
+                SizeSuffixes[mag]);
+        }
+
+        #endregion Public Methods
+    }
+}
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