Small CSV cleanup trial: $10 for one UTF-8 CSV with up to 100 data rows and 10 columns, using one agreed rule: exact duplicate removal OR trimming selected fields OR an explicit value mapping. Includes the cleaned CSV, change log, exception list and row-count check. Delivery within 1 day after the sample and rule are agreed, with one revision within the original scope. Message first with a redacted sample. Missing, unknown and conflicting values are preserved for your decision. A larger starter is $35 for up to 1,000 rows and 3 agreed rules, delivered within 3 days after scope confirmation. I use AI-assisted tools and deterministic checks. Provide only data you are authorized to share and permit AI-assisted processing. No sensitive personal, health or payment data. No macros, complex joins, APIs or production access. Portfolio examples are self-created demos.