diff --git a/Aaru.Archives/Arc/Unimplemented.cs b/Aaru.Archives/Arc/Unimplemented.cs
index 970f3a943..eaae68eb1 100644
--- a/Aaru.Archives/Arc/Unimplemented.cs
+++ b/Aaru.Archives/Arc/Unimplemented.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using Aaru.CommonTypes.Enums;
 using Aaru.CommonTypes.Interfaces;
 using Aaru.CommonTypes.Structs;
@@ -10,9 +9,6 @@ public sealed partial class Arc
 {
 #region IArchive Members
 
-    /// <inheritdoc />
-    public ErrorNumber ListXAttr(int entryNumber, out List<string> xattrs) => throw new NotImplementedException();
-
     /// <inheritdoc />
     public ErrorNumber GetXattr(int entryNumber, string xattr, ref byte[] buffer) =>
         throw new NotImplementedException();
diff --git a/Aaru.Archives/Arc/Xattrs.cs b/Aaru.Archives/Arc/Xattrs.cs
new file mode 100644
index 000000000..5c6de3a47
--- /dev/null
+++ b/Aaru.Archives/Arc/Xattrs.cs
@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+using Aaru.CommonTypes.Enums;
+
+namespace Aaru.Archives;
+
+public sealed partial class Arc
+{
+#region IArchive Members
+
+    /// <inheritdoc />
+    public ErrorNumber ListXAttr(int entryNumber, out List<string> xattrs)
+    {
+        xattrs = null;
+
+        if(!Opened) return ErrorNumber.NotOpened;
+
+        if(entryNumber < 0 || entryNumber >= _entries.Count) return ErrorNumber.OutOfRange;
+
+        xattrs = [];
+
+        if(_entries[entryNumber].Comment is not null) xattrs.Add("comment");
+
+        return ErrorNumber.NoError;
+    }
+
+#endregion
+}
\ No newline at end of file