What is the problem?
While in the browser with Octoprint running on Windows 10, need to transfer local files(gcode) to the SD on the printer.
What did you already try to solve it?
Moving manually onto SD card then printer
Additional information about your setup
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
Octoprint 1.4.2 running on 32 bit Windows 10 on Dell Dimension 4700