Phew, so if your knowledge level is that low, it’s going to be really difficult. I wonder if this is the right tool for you? InfluxDB and Grafana are not Microsoft Excel. Even if you have all the csv files in InfluxDB, you will have problems writing the queries in InfluxDB or Grafana.
You should have a certain willingness to read in and deal with it. You don’t necessarily have to be able to program, but you should be able to adapt e.g. the config file for Telegraf. And if you want to visualize the data in InfluxDB or Grafana, you might have to deal with the flux query language.
There is no upload button in the InfluxDB GUI to upload csv files. The only thing you can upload in the GUI so far are files in influx line protocol format.
To get your csv files into InfluxDB, I would use the Telegraf agent. Please read up on Telegraf or watch some Youtube tutorials about it.
