I clean messy and difficult datasets; those with duplicate records, inconsistent formatting, encoding problems, dates in six different styles, fields holding three things at once, exports that don't line up with each other. I work the rules out from the data, and I tell you what I found and what I changed.
You get a clean dataset, in a CSV, Excel file, JSON, XML, or any format of your choice, and a summary of what changes I made and d
Send a sample and I'll tell you what's involved.