I'm using the OS DataGrid component to modify and save excel files depending on the user. I want to save these generated excel files as a binary in the Database for when the user wants to generate the same file, they can just download it instead of waiting again the download time. 
Is there a way to "intercept" the file when creating it and save it in the database? Or is there a function in the GridAPI that return the binary file? 

I don't want the user to have to upload the file after downloading it. I want it to be automatic.