Xll extension is related to Microsoft Excel Plugins. You can try to open xll files with Microsoft Excel software.
Xll extension stands for program plugin which provides new features to the software. Xll plugin is found in Microsoft Excel software. It is similar with DLL files.However, it is specially developed for Microsoft Excel. You are not able to download Excel free via internet. You should get Office Cd to install.
What to use XLL
which page related to XLL file
XLL Related Searches
You can check related links about XLL fileextension.