We used to use the Microsoft Office Suite, including Excel. However, we stopped using it about six months ago. I loved the VB solution. The best system for me at the moment is the Excel VBA. I can do everything with this. They are secure, and they have a database QR with MDB or access CCB. This is best for me. However, we need to buy this. It’s a lot of money and we now reject the Microsoft policy. Even if it's the best, we prefer to use AppSheet instead. It has developed some features that even Excel doesn’t have. While it's a minimal initiative, it’s my understanding that they will grow now.