/text/scalc/01/12040201.xhp More Shows additional filter options.

Options Case sensitive Distinguishes between uppercase and lowercase letters when filtering the data. Range contains column labels Includes the column labels in the first row of a cell range. Copy results to Select the check box, and then select the cell range where you want to display the filter results. You can also select a named range from the list. Regular expression Allows you to use wildcards in the filter definition. For a list of the regular expressions that $[officename] supports, click here. If the Regular Expressions check box is selected, you can use regular expressions in the Value field if the Condition list box is set to '=' EQUAL or '<>' UNEQUAL. This also applies to the respective cells that you reference for an advanced filter. No duplication Excludes duplicate rows in the list of filtered data. Keep filter criteria Select the Copy results to check box, and then specify the destination range where you want to display the filtered data. If this box is checked, the destination range remains linked to the source range. You must have defined the source range under Data - Define range as a database range. Following this, you can reapply the defined filter at any time as follows: click into the source range, then choose Data - Refresh Range. Data range Displays the cell range or the name of the cell range that you want to filter.