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Part IV: Using Advanced Excel Features

Understanding the Different Web Formats

You can save an Excel workbook so that it’s viewable in a Web browser. When you save an Excel workbook for viewing on the Web, you have two options:

An HTML file: Produces a static Web page, plus a folder that contains support files. You can create the HTML file from the entire workbook or from a specific sheet.

A single file Web page: Produces a MIME HTML file (*.mht; *.mhtml). Not all browsers can open these files.

These options are described in the following sections. Both examples use a simple two-sheet workbook file. Each sheet has a table and a chart. Figure 28.1 shows one of these worksheets.

Keep in mind that these files are intended to be only displayed by a Web browser. They are not interactive files. In other words, the user cannot make any changes while viewing the file.

FIGURE 28.1

This workbook will be saved in Excel Web formats.

On the CD

This workbook, named webpage.xlsx, is available on the companion CD-ROM. n

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Chapter 28: Excel and the Internet

Creating an HTML file

To save a workbook as an HTML file:

1.(Optional but recommended) Save the workbook as a normal Excel file.

2.Choose File Save As to display the Save As dialog box.

3.Select Web Page (*.htm; *.html) from the Save as Type drop-down list.

4.Specify what to save (either Entire Workbook or the active sheet).

5.Specify a filename and then choose a location for the file.

6.Click Save to create the HTML file. Excel may display a message warning you that some features in the workbook are not compatible with the Web page format. You can just ignore this message.

Caution

Although Excel can open the HTML files that it creates, essential information is lost. For example, formulas are lost, and charts appear as static graphic images. Therefore, if you might need to make changes later on, make sure you keep a copy of your work in a standard Excel file format. n

Figure 28.2 shows how Sheet1 of the example file looks in a browser: Firefox, in this case. Notice that the workbook’s sheet tabs appear along the bottom, and you can switch sheets just like you do in Excel.

In addition to the webpage1.htm file, Excel also created a folder named webpage1_files. This folder contains additional files that must be kept with the main HTML file. Therefore, if you post such a file on a Web server, don’t forget to also post the accompanying directory.

Creating a single file Web page

In the previous section, I discuss how creating an HTML file with Excel also creates a folder of additional files. The procedure for creating a Web page that uses a single file is exactly the same, except for Step 3. In Step 3, select Single File Web Page (*.mht; *.mhtml) from the Save as Type drop-down list.

Figure 28.3 shows the example file displayed in Internet Explorer.

Caution

As I mention previously, not all browsers can open single-file MHTM files. Two that can are Microsoft Internet Explorer (IE) and Opera. Other browsers (such as Firefox and Google Chrome) may require an add-on to display these files. n

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Part IV: Using Advanced Excel Features

FIGURE 28.2

Viewing the HTML file in a browser.

Web Options

If you save your work in HTML format, you should be aware of some additional options. In the Save As dialog box, click Tools and then choose Web Options to display the Web Options dialog box. From this dialog box you can control some aspects of the HTML file, such as target browser version (Internet Explorer only), target monitor resolution, and fonts. Most of the time, the default settings work just fine. However, if you plan to save Excel files in HTML format, familiarizing yourself with the options available is worthwhile. These options are described in the Help system.

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Chapter 28: Excel and the Internet

FIGURE 28.3

Viewing the single file Web page in Internet Explorer.

Opening an HTML File

Excel can open most HTML files, which can be stored on your local drive or on a Web server. Choose File Open and locate the HTML file. If the file is on a Web server, you’ll need to copy the URL and paste it into the File Name field in the Open dialog box.

How the HTML code renders in Excel varies considerably. Sometimes, the HTML file may look exactly as it does in a browser. Other times, it may bear little resemblance, especially if the HTML file uses Cascading Style Sheets (CSS) for layout.

After opening an HTML file, you can work with the information using the normal Excel tools.

Another way to open an HTML file from a Web server is to use a Web query, which is discussed later in this chapter (see “Using Web Queries”).

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