A free browser-based productivity tool from KitForma for professionals working with spreadsheet data. Map CSV, TSV or values-only XLSX columns to a chosen schema, check row errors, and export CSV, text-cell XLSX or a JSON report. Useful for preserving identifiers such as 000123 in Excel. Includes a fictional sample. No account needed. Limits: 5 MiB, 10,000 rows, 100 columns and 100,000 cells. Does not import formulas or macros, and does not automatically repair data. Submitted for OBOHITO’s free web-app directory.