Edit Numeric Excel Data

I have several workbooks filled with numeric information that now needs a careful refresh. All of the incoming numbers are already sitting in companion CSV or Excel files, so the task is strictly digital—no scanning or transcription from paper... (Budget: ₹12500 - ₹37500 INR, Jobs: Data Analysis, Data Cleansing, Data Processing, Excel, Excel Macros, Excel VBA, Visual Basic)