can i use libre office for free over 50 systems in a organisation.is that free licensed.clarify the doubts.
is xls format is supportable.
Yes you can, see about Licenses.
Welcome to the community!
And yes, you can edit the xls format. Try it.
You can find out about the new features of LibreOffice 6.2 here.
You can download LibreOffice here.
Good luck.