a quick poll - expert lotto has a concept of 'file filters'. it means almost any filter can be applied to a previously saved file or wheel and filtered tickets are then written to the package.
this features was carried over from the ancient days of "expert lotto version 1.0" when it was costly to allocate hundred megabytes of disk space for a full wheel. the software was then distributed on a cd with some example full wheels. so users could use the file filters to load filtered wheels into the package.
since the ticket generator now supports filters as well, there's not many reasons to keep the file filters in version 4.1 - i think.
what's your opinion on this? do you use file filters regularly?