Write into data source from within Power BI?

I have an excel being loaded into Power BI with various columns. One of the columns is basically for end users feedback. The Power BI report is visible to the end users. I want them to be able to write data in this feedback column which should then get reflected in my original excel file as well. Basically, the reverse of what normally happens when excel is updated then power bi report is updated. 

I don't think this makes but I was curious if there is any work around for my use-case. 

Thank you in advance.