About the Page Viewer Web Part
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You can use the Page Viewer Web Part to display a Web page, file, or folder on a Web Part Page. You enter either a hyperlink, file path, or folder name to link to the content.
You can only use the Page Viewer Web Part in a browser that supportsthe HTML <IFRAME> element.
Displaying a file or folder requires Microsoft Internet Explorer.
Ways you can use the Page Viewer Web Part
You might use the Page Viewer Web Part to display:
A favorite Internet news source in a dedicated news summary section of a Web Part page.
A list of active work group files on a network server that you want to view on a regular basis.
A commonly-used document or spreadsheet.
How the Page Viewer Web Part displays a Web page within a Web Part Page
The linked content of the Page Viewer Web Part is isolated from other content on the Web Part Page through the use of the HTML <IFRAME> element. This element ensures that any HTML elements displayed as content in the Page Viewer Web Part will not conflict with other HTML elements on the Web Part Page. For example, the Web Part Page may already contain a <FORM> element, and the page would not display correctly if the linked content also contained a <FORM> element that was not contained inside the <IFRAME> element.
The Page Viewer Web Part displays content asynchronously from the rest of the page. This means that you can view and use other Web Parts on the page if the link happens to take a long time to return the content.