There're lots of charts in EIKON app, and we can download the data to an excel file and process.The example is as below.
However,it takes a lot of effort if we download the excel one by one.Are there any tools in eikon api can quickly help to deal with such data?
The Eikon Data API get_data and get_timeseries functions return data to the application as the Pandas DataFrame object. Then the application can use Pandas to_excel or to_csv function to export data to Excel/CSV file format.
I suggest you check the Eikon Data API tutorials page which will give you an idea of how to get data from the API.
If you want to export the "Graph" to Excel, you can draw the Pandas DataFrame object to be a graph with any libraries (such as matplotlib.pyplot) and use other 3rd party Python-Excel libraries to export Dataframe and Graph to Excel. You can find more examples of how to export data and graph to Excel with the xlwing library in the following articles:
The articles use Refinitiv Data Platform Library for Python as an example API, but it should be adapted to Eikon Data API easily.