Hello!

If a excel document is opened with a defined autofilter the autofilter do not
work in calc, because the created named data range
"Excel_BuiltIn__FilterDatabase_x" has only the size of on row (the first row of
the data range).

If the user set the autofilter off and again on it results every time in no
autofilter entries, because calc uses always the created datarange.

If an autofilter not only defined but active, the the created data range
"Excel_BuiltIn__FilterDatabase_x" has the right size and the autofilter works.

The problem appears also in 2.x.

(Sorry, can't create a sample document because no excel is present.)

Solution: Creation of "Excel_BuiltIn__FilterDatabase_x" with the right size of
the whole data range or no creation of named data range if the autofilter is not
active.