Hi, Having solid 4 years of experience in Power BI, I am interested in this requirement of yours to modify existing dashboard according to new 2 excel files which have the similar data.
Coming to your requirement, As a next step I would like to review those excel file which have the data & needs to consider for this task. Also, if you can give the access to existing dashboard then that would be helpful. From the given image, it looks like the data is coming from the usage of different machines having logs of their fuel consumption, speed & retarder usage.
About me: I have more than 4 years of experience in Power BI and its components(Dataflows, Gateways, Power BI Services). I have worked in many different domains like Hospitality, Health Care, Finance, Manufacturing, IT and so on.
You can rely on my experience & skill set for not only this work but for support as well.
Kindly open the communication channel as it will help me to not only discuss but also I can share you my previous work in power bi as well.
Looking forward to your reply.
Thanks & Regards
Ashish