Add project files.

.editorconfig

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+[*.cs]
+
+# CS8765: Nullability of type of parameter doesn't match overridden member (possibly because of nullability attributes).
+dotnet_diagnostic.CS8765.severity = silent

Wwise Bank Converter/Program.cs

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+using Newtonsoft.Json;
+
+namespace WwiseBankConverter
+{
+    internal static class Program
+    {
+        /// <summary>
+        ///  The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+
+            OpenFileDialog ofd = new()
+            {
+                Filter = "Wwise Bank(*.bnk;*.json)|*.bnk;*.json",
+                RestoreDirectory = true
+            };
+
+            if (ofd.ShowDialog() != DialogResult.OK) return;
+
+            string outputDir = Environment.CurrentDirectory + "\\Output";
+
+            if (Path.GetExtension(ofd.FileName) == ".bnk")
+            {
+                try
+                {
+                    string destFileName = outputDir + "\\" + Path.GetFileNameWithoutExtension(ofd.FileName) + ".json";
+                    Wwise.WwiseData wd = new(File.ReadAllBytes(ofd.FileName));
+                    string json = JsonConvert.SerializeObject(wd.banks[0], Formatting.Indented);
+                    Directory.CreateDirectory(outputDir);
+                    File.WriteAllText(destFileName, json);
+                    MessageBox.Show("Json placed in Output folder.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                }
+                catch (Exception e)
+                {
+                    MessageBox.Show(e.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+            else if (Path.GetExtension(ofd.FileName) == ".json")
+            {
+                try
+                {
+                    string destFileName = outputDir + "\\" + Path.GetFileNameWithoutExtension(ofd.FileName) + ".bnk";
+                    string json = File.ReadAllText(ofd.FileName);
+                    Wwise.WwiseData wd = new()
+                    {
+                        banks = new()
+                    };
+                    Wwise.Bank? b = JsonConvert.DeserializeObject<Wwise.Bank>(json);
+                    if (b == null)
+                        throw new ArgumentException();
+                    wd.banks.Add(b);
+                    Directory.CreateDirectory(outputDir);
+                    FileStream fs = File.OpenWrite(destFileName);
+                    fs.Write(wd.GetBytes());
+                    MessageBox.Show("Wwise bank placed in Output folder.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                }
+                catch (Exception e)
+                {
+                    MessageBox.Show(e.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+    }
+}