# Excel Data Extractor ## Product positioning Extract data from local XLS/XLSX or CSV files by worksheet, columns, and range for analysis and follow-up processing. ## Core features Worksheet selection; range selection; data preview; header handling; CSV/JSON export. ## Input and output Input: an XLS/XLSX/CSV file, worksheet, and cell range Output: CSV or JSON ## Supported platforms Windows, macOS, and Linux; runs locally and offline. ## Business model Free tier: 10 uses per day Perpetual license removes usage limits. ## Processing notes Files are processed locally and are not uploaded to third-party services.