I will convert your data set to interactive dashboard using Power BI. You do not need to install any software other than office package to work with these dashboards. I will create Dashboards for 1. KPI 2. Sales Data 3. Marketing Data 4. Exam Results 5. Survey Responses 6. etc. Once we build the Dashboard you can upload the new data (assume you get this developed to view your sales data. You will be able to add last month's data) without any help from me. This will be much easier for you than contacting the developer every month to upload the data to the dashboard. If you have any query or requirement other than Dashboard, feel free to contact me.