保存文件
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Aspose.Cells允许创建、保存文件，并操作现有文件。本文介绍了多种保存文件的方法。
不同的文件保存方式
Aspose.Cells提供Workbook类，它代表微软Excel文件并提供操作Excel文件所需的方法。 Workbook类提供用于保存Excel文件的Save方法。这个Save方法有多个重载，用于不同方式保存文件。文件保存的格式由SaveFormat枚举决定。
将文件保存到某个位置
要将文件保存到存储位置，调用Workbook对象的Save方法时，指定文件名（包含存储路径）和所需的文件格式（取自SaveFormat枚举）。
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| workbook, _ := NewWorkbook_String("Book1.xlsx") | |
| workbook.Save_String("Book1.xls") | |
| workbook.Save_String_SaveFormat("Book1.pdf"，SaveFormat_Excel97To2003) | |
| workbook.Save_String_SaveFormat("Book1.pdf"，SaveFormat_Xlsx) |
将文件保存到流
要将文件保存到流中，创建MemoryStream或FileStream对象，并通过调用Workbook对象的Save方法，将文件保存到该流对象中。在调用Save方法时，指定所需的文件格式(使用SaveFormat枚举)。
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| workbook, _ := NewWorkbook_String(".Book1.xlsx") | |
| stream, err := workbook.Save_SaveFormat(SaveFormat_Pdf) | |
| if err != nil { | |
| log.Fatalf("Failed to read file: %v", err) | |
| } | |
| file, err1 := os.OpenFile("Book1.pdf", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644) | |
| if err1 != nil { | |
| log.Fatalf("Failed to open file: %v", err1) | |
| } | |
| defer file.Close() | |
| _, err = file.Write(stream) | |
| if err != nil { | |
| log.Fatalf("Failed to append to file: %v", err) | |
| } | |
| fmt.Println("Data appended successfully.") |
将文件保存为 PDF
使用Aspose.Cells for Go via C++库，将所需内容保存为PDF文件，方法是新建一个Workbook对象或从读取现有Excel文件构造一个Workbook，然后调用其Save方法将文件保存为PDF。当调用Save方法时，用SaveFormat枚举指定所需文件格式。
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| workbook, _ := NewWorkbook() | |
| worksheets, _ := workbook.GetWorksheets() | |
| worksheet, _ := worksheets.Get_Int(0) | |
| cells, _ := worksheet.GetCells() | |
| cell, _ := cells.Get_String("P40") | |
| cell.PutValue_String("This is sample data.") | |
| securityOptions, _ := NewPdfSecurityOptions() | |
| securityOptions.SetOwnerPassword("123") | |
| securityOptions.SetPrintPermission(true) | |
| securityOptions.SetAccessibilityExtractContent(true) | |
| pdfSaveOptions, _ := NewPdfSaveOptions() | |
| pdfSaveOptions.SetSecurityOptions(securityOptions) | |
| workbook.Save_String_SaveOptions("security.pdf", pdfSaveOptions.ToSaveOptions()) |