Filter may be applied to the archived data, which also applies to export to CSV/GPX.
To open filter settings just click ‘Filter…’ button on archive toolbar.
There are five filtering options.
Hide zero coordinates - will not show positions with zero values in longitude and latitude.
Hide invalid locations - will not show positions with ‘valid’ flag set to ‘false’.
Hide duplicates - will not show positions that have exactly same date and time.
Ignore locations with distance from previous point less than X miles/km. Does as it says. Leave blank to disable this filter.
Speed. Applies some filtering to the ‘speed’ column. To disable either leave blank condition (‘<’, ‘>’, etc.) or value.
To disable all filters at once check ‘Disable filter’ box.