Data type changes when read from file

A list stored become string when read from a saved file. What could possibly be wrong here? Or is there any other way to do this?

You convert correctly the list into a csv row before storing it
And after reading, you convert it correctly back into a list…
Your blocks look fine
Show us the result from upload_result.Text


It prints the same list but as a “string” but I need it as a “list/array”