SFDCWallah

A field set is a grouping of fields. For example, you could have a field set that contains fields describing a user’s first name, middle name, last name, and business title.

If the page is added to a managed package, administrators can add, remove, or reorder fields in a field set to modify the fields presented on the Visualforce page without modifying any code.

Go To

Add Fields you want to show on visualforce page.

Create Controller and VisualForce Page: I have created controller to fetch the values dynamically 

Output Before Changes:

Change the order of the fields:

Output After Changes:

Important Points:

• Field sets are available for Visualforce pages on API version 21.0 or above.
• You can have up to 50 field sets referenced on a single page.
• A Salesforce org can have up to 500 field sets.

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