Hello Richie,
to find your issue ist will be need some more details.
Where is your code, which works right now?
Do the user uploade it as a file or as a datasheet?
Show your upload-process (done by CODE) ?
Ok, now i see. You have already something in a table, right?
That means, this showed data musst be in a database, right?
Do you not save the data in database?
So if you would save it in database and then makes a function which would reload the data from that database back, when user do refresh the page or site.
But because i do not understand all your processes (not enough input) it is all just theoretical thoughts. 