This topic assumes that you've installed a version of Lertap5 on a computer which is running Excel 2010, Excel 2013, Excel 2016 or Excel 2019. Related background information is presented in other topics in this document: Requirements, How to get Lertap, and How to run it. (Note: some users will have what Microsoft calls "Excel 365" -- this will be the case when users have an annual subscription to Microsoft Office.)
Lertap5, when first installed on a computer running the Windows operating system, will run as the so-called "Mini" version.
The "Mini" version never expires; it has no end date. But it's limited to processing no more than 250 data records. "Mini" may be upgraded to a standard version by purchasing a license from the Lertap e-store. The standard version will process thousands of test and survey results. (There is no limit to the number of items which may be processed.)
The License menu may be used as a means of starting the process of purchasing a license, but more often it is used by folks who have already obtained a license, and want to activate, or "unlock", their copy of Lertap5.
The menu format varies a bit depending on the version of Lertap5 installed, but it will look something like this:
Page forward to find out what the various options on the License menu do.