What is a .xll and should it be checked for virsusses?
|Ballistics for Excel|
file is a regular .dll file containing a special interface for Excel. A
.dll file is a Dynamic Link Library containing executable code. It is a
good idea to have the bfx.xll file and the Excel workbooks from this
site checked by a virus scanner. I take great care myself to keep
everything virus free, nevertheless it is better to be safe than sorry.