static void OnPostprocessAllAssets(string[] importedAssets, string[] deletedAssets, string[] movedAssets, string[] movedFromAssetPaths)
    {
        foreach (string asset in importedAssets)
        {
            if (!filePath.Equals(asset))
            {
                continue;
            }

            using (FileStream stream = File.Open(filePath, FileMode.Open, FileAccess.Read))
            {
                var book = new HSSFWorkbook(stream);

                foreach (string sheetName in sheetNames)
                {
                    var exportPath = "Assets/Resources/Data/" + sheetName + ".asset";

                    // check scriptable object
                    var data = (Entity_cyouhei_mst)AssetDatabase.LoadAssetAtPath(exportPath, typeof(Entity_cyouhei_mst));
                    if (data == null)
                    {
                        data = ScriptableObject.CreateInstance <Entity_cyouhei_mst>();
                        AssetDatabase.CreateAsset((ScriptableObject)data, exportPath);
                        data.hideFlags = HideFlags.NotEditable;
                    }
                    data.param.Clear();

                    // check sheet
                    var sheet = book.GetSheet(sheetName);
                    if (sheet == null)
                    {
                        Debug.LogError("[QuestData] sheet not found:" + sheetName);
                        continue;
                    }

                    // add infomation
                    for (int i = 1; i <= sheet.LastRowNum; i++)
                    {
                        IRow  row  = sheet.GetRow(i);
                        ICell cell = null;

                        var p = new Entity_cyouhei_mst.Param();

                        cell = row.GetCell(0); p.No = (int)(cell == null ? 0 : cell.NumericCellValue);
                        cell = row.GetCell(1); p.requiredItemTyp = (cell == null ? "" : cell.StringCellValue);
                        cell = row.GetCell(2); p.requiredItemQty = (int)(cell == null ? 0 : cell.NumericCellValue);
                        cell = row.GetCell(3); p.requiredMoney = (int)(cell == null ? 0 : cell.NumericCellValue);

                        data.param.Add(p);
                    }

                    // save scriptable object
                    ScriptableObject obj = AssetDatabase.LoadAssetAtPath(exportPath, typeof(ScriptableObject)) as ScriptableObject;
                    EditorUtility.SetDirty(obj);
                }
            }
        }
    }
    static void OnPostprocessAllAssets(string[] importedAssets, string[] deletedAssets, string[] movedAssets, string[] movedFromAssetPaths)
    {
        foreach (string asset in importedAssets)
        {
            if (!filePath.Equals(asset))
                continue;

            using (FileStream stream = File.Open (filePath, FileMode.Open, FileAccess.Read))
            {
                var book = new HSSFWorkbook(stream);

                foreach (string sheetName in sheetNames)
                {
                    var exportPath = "Assets/Resources/Data/" + sheetName + ".asset";

                    // check scriptable object
                    var data = (Entity_cyouhei_mst)AssetDatabase.LoadAssetAtPath(exportPath, typeof(Entity_cyouhei_mst));
                    if (data == null)
                    {
                        data = ScriptableObject.CreateInstance<Entity_cyouhei_mst>();
                        AssetDatabase.CreateAsset((ScriptableObject)data, exportPath);
                        data.hideFlags = HideFlags.NotEditable;
                    }
                    data.param.Clear();

                    // check sheet
                    var sheet = book.GetSheet(sheetName);
                    if (sheet == null)
                    {
                        Debug.LogError("[QuestData] sheet not found:" + sheetName);
                        continue;
                    }

                    // add infomation
                    for (int i=1; i<= sheet.LastRowNum; i++)
                    {
                        IRow row = sheet.GetRow(i);
                        ICell cell = null;

                        var p = new Entity_cyouhei_mst.Param();

                    cell = row.GetCell(0); p.No = (int)(cell == null ? 0 : cell.NumericCellValue);
                    cell = row.GetCell(1); p.requiredItemTyp = (cell == null ? "" : cell.StringCellValue);
                    cell = row.GetCell(2); p.requiredItemQty = (int)(cell == null ? 0 : cell.NumericCellValue);
                    cell = row.GetCell(3); p.requiredMoney = (int)(cell == null ? 0 : cell.NumericCellValue);

                        data.param.Add(p);
                    }

                    // save scriptable object
                    ScriptableObject obj = AssetDatabase.LoadAssetAtPath(exportPath, typeof(ScriptableObject)) as ScriptableObject;
                    EditorUtility.SetDirty(obj);
                }
            }

        }
    }