Once you have obtained a key through a trial or purchase, the activation process is straightforward:
For more information on Zebra BI licensing and free access, check out the following resources: zebra bi license key free link
For Microsoft Excel and PowerPoint, Zebra BI offers a version that is "free forever" for individual use. While it has some limitations (like a maximum of 3 comments), it is a permanent solution for single users not sharing reports within a team. Once you have obtained a key through a