So I received a request for help with posting an Excel spreadsheet to a neat readable format (table) on Voat, and after explaining the markdown format, I couldn't help but wonder if anyone had put together a solution for easily copy-pasting a spreadsheet into a markdown converter.
As it turned out, someone on GitHub had, but it's not quite Voat-friendly.
So with respect and credit to the original author, jonmagic, I went ahead and (after setting up a github account) modified it slightly so that the output is appropriate for Voat:
Download this repository and extract to a folder location of your choosing. Simply load the included index.html file in a web browser of your choice, select and copy the desired range from your spreadsheet, paste it to the input area and it will be converted to Voat-friendly markdown formatting.
Use as you see fit. If you find a way to improve the script, I welcome you to let me know here or via GitHub.