tailieunhanh - how to do everything with ms office excel 2003 phần 9

Tính năng kịch bản của Excel cho phép bạn xác định và sử dụng dữ liệu thay thế bộ trong cùng một bảng tính. Thay vì tạo ra một phiên bản riêng biệt của một bảng tính và sử dụng nó để thử nghiệm với các giá trị khác nhau hoặc khác nhau | 334 How to Do Everything with Microsoft Office Excel 2003 Another strong component of XML s appeal is the validation it offers which can provide a solution to the problems of formatting documents consistently and filling them in correctly. An XML document can validate its contents and formatting against the set of rules contained in the schema attached to it. For example the schema attached to an invoice spreadsheet could ensure that cells mapped to specific elements contained data rather than being empty and that the data was of the required type. Likewise the schema for a text document might require each table to be followed by a caption validation could identify tables missing their captions. What You re Likely to Do with XML Files Depending on the type of work you do you re likely to work with XML documents in one of two very different ways As a user Most people who use XML documents will fill in documents and create new documents by using existing schemas that developers in their company or organization created. To fill in existing XML documents and to create new XML documents based on existing schemas you need only add a few skills to the core Excel and Word skills you probably already possess. As a developer Someone needs to develop the XML documents and related schemas that the other users will work with. If you re a developer of XML documents and schemas you ll need a much wider set of skills than if you just need to fill in the documents. Work with XML Files in Excel For opening editing and saving XML files you use many of the same commands as for working with regular Excel worksheets and workbooks. First you must understand the distinction between files in the XML Spreadsheet format and XML data files. XML Spreadsheet is a schema that enables Excel to save Excel workbooks minus a few elements such as AutoShapes charts and other objects as well as VBA projects in XML-encoded files. XML Spreadsheet files are Excel files encoded in XML rather than in the .