Yes, submitblock works fine. Out of curiosity, I'd like to see step-by-step how you did it. Do you have an example you could share your experience with string compilation on a spreadsheet? Looking forward to your instruction. Thanks in advance
I give the spreadsheet away for free, here, calling it the "F9 Miner" because it does one hash with each time you press F9 (calculate) in Excel:
https://modulo.networkI built it as a learning experiment for myself, but think it is worth sharing. There are no macros nor any array formulas, so you should not see any of that stuff if/when you download it. The spreadsheet self-explanatory, but if you have any questions (or find any problems) let me know here!