Great job on the first two files.
I used some computer code to detect errors and found only 33 errors in "spreadsheet2_easier" and 9 errors in "spreadsheet3_easier". That is very good. I can provide you with a list of the lines that have errors so that you can correct them.
I have 7 more files that I want the same work done to. I paid you $40 per file for the other two, so I am proposing $150 for these 7 files. They are the same length as the others.
Please let me know if you are interested in this project.
How long do you think it will take you?