//根据文件名，文件版本，文件格式信息来保存文件
public void SaveToFile(string fileName);
public void SaveToFile(string fileName, ExcelVersion version);
public void SaveToFile(string fileName, FileFormat fileFormat);
public void SaveToFile(string fileName, string separator);

//从文件加载，根据文件名，保护模式和Excel版本
public void LoadFromFile(string fileName);
public void LoadFromFile(string fileName, bool preserveMode);
public void LoadFromFile(string fileName, ExcelVersion version);
public void LoadFromFile(string fileName, string separator);
public void LoadFromFile(string fileName, string separator, int row, int column);
public void LoadFromFile(string fileName, string separator, int row, int column, ExcelVersion version);
//从数据流中加载
public void LoadFromStream(Stream stream);
public void LoadFromStream(Stream stream, bool loadStyles);
public void LoadFromStream(Stream stream, ExcelVersion version);
//从XML文件加载
public void LoadFromXml(Stream stream);
public void LoadFromXml(string fileName);
//从模版文件加载
public void LoadTemplateFromFile(string fileName);
public void LoadTemplateFromFile(string fileName, bool loadStyles);

#region 2.Excel文件属性例子
static void ExcelTest2()
{   
 Workbook workbook = new Workbook();

 //修改文档属性信息，这样在发布的时候，可以通过文档显示公司以及文件人的信息
 workbook.DocumentProperties.Author = "张三";   //作者
 workbook.DocumentProperties.Subject = "测试文件属性"; //主题
 workbook.DocumentProperties.Title = "测试Excel文件"; //标题
 workbook.DocumentProperties.Company = "XX有限公司";  //单位
 workbook.DocumentProperties.Comments = "保留文件评论"; //评论
 workbook.DocumentProperties.Keywords = "测试 Excel "; //关键词
 workbook.DocumentProperties.CreatedTime = DateTime.Now; //创建时间
 //TODO:还有其他属性，可以参考XlsBuiltInDocumentProperties的相关属性   

 //将Excel文件保存到指定文件,还可以指定Excel版本
 workbook.SaveToFile("Sample.xls", ExcelVersion.Version2007);
}
#endregion

#region 3.加密Excel文件例子
static void ExcelTest3()
{
 Workbook workbook = new Workbook();
 workbook.Protect("pwd111");//设置保护加密的 密码 ：pwd111
 //将Excel文件保存
 workbook.SaveToFile("Sample.xls", ExcelVersion.Version2007);
}
#endregion

Workbook workbook = new Workbook();

Worksheet sheet = workbook.Worksheets[0];

//保护sheet
sheet.Protect("test", SheetProtectionType.All);

//将Excel文件保存
workbook.SaveToFile("Sample.xlsx", ExcelVersion.Version2010);

static void ExcelTest4()
{
 Workbook workbook = new Workbook();
 workbook.CreateEmptySheets(1);
 Worksheet sheet = workbook.Worksheets[0];

 sheet.Range["A1"].Text = "锁定";
 sheet.Range["B1"].Text = "未锁定";

 sheet.Range["A1"].Style.Locked = true;
 sheet.Range["B1"].Style.Locked = false;

 //一定要对工作表进行保护，才能生效
 sheet.Protect("test", SheetProtectionType.All);

 workbook.SaveToFile(@"Sample_Lock.xlsx", ExcelVersion.Version2010);
}