Which method is used to create a filter for a specific content in a field?

The method of clicking on 'Text Filters' in the header dropdown is appropriate for creating a filter for specific content in a field. This technique allows users to apply more advanced filtering criteria beyond simple equality. By selecting 'Text Filters' from the dropdown menu in a specific column header, users can access various options such as filtering for entries that contain specific text, start with or end with certain characters, or even set criteria based on text length. This functionality provides a detailed and nuanced way to isolate the data that meets specific conditions, making it easier to analyze and work with relevant information.

While right-clicking on the column header to select 'Filter' may lead to basic filtering options, and applying a filter in the Datasheet view is more about enabling or disabling filters rather than setting specific criteria, the 'Query Builder' is typically used for more complex queries rather than direct filtering within the datasheet context. Thus, using 'Text Filters' is the most robust method for targeting specific content within a field.