Text File Spell Correction

I have a folder of plain-text files that are ready for delivery except for one last quality step: every misspelling must be fixed. The content has already been deduplicated and basic formatting handled, so the only remaining issue is spelling accuracy... (Budget: ₹750 - ₹1250 INR, Jobs: Automation, Data Processing, Editing, Proofreading, Python, Scripting)