Flask-Pandas Creating a download file [duplicate]
问题 This question already has answers here : Writing then reading in-memory bytes (BytesIO) gives a blank result (2 answers) Closed 3 years ago . I have a small app where I input a few csv files, do some data processing with pandas and eventually I would like to have the results spit out an excel file once it is done. Right now I can render the results of the processing to html and I have a table up and running. However the issues comes when I try to create an excel file for download. Below is