SALYM

Hi all, I don't understand why there are so many illogic version number in the contribution repository. for instance : - a v3 in 2006 then a v2.76 in 2007 - the brand new one states you have in install a old 2.78 version - etc... Can someone make it clear please ? And why not just using a excel to mysql odbc connection or something like that ? Thank you for your answers SALYM