How to upload temperature data externally by using .txt , csv or any other formats?

Hello again! Basically, our API integration will allow SimScale and another program to communicate with each other. For example, it can allow users to automate their workflows, perform parametric sweeps for their design iterations, or it can be used for shape optimization. For your application, it can be used to automate your workflow by uploading a CSV file and using it as a boundary condition.
Here is a public example of our Python SDK that uploads a CSV file and define it as a velocity inlet boundary condition.

Please feel free to check out our SDK’s that are available through our GitHub page as well.

Hope this helps.