View and edit CSV or TSV files in a clear, spreadsheet-style table. CEditor is a CSV editor, TSV editor, and tabular data viewer for Windows. Open files by drag and drop, edit individual cells, add or delete rows, manage columns, sort data, and apply filters. Freeze important rows and columns to keep headings visible while reviewing large tables. Work with multiple files: • Open multiple CSV and TSV files at the same time • Arrange file windows side by side or vertically • Copy, add, remove, and reorder columns • Compare records between two open CSV files • Find records present in both files or only one file • Detect duplicate records Protect sensitive information: CEditor can mask supported personal data such as names, phonetic names, telephone numbers, postal codes, and email addresses. It automatically selects an appropriate masking method, making it useful when preparing sample data, test data, screenshots, or files for sharing. Use it for: • Viewing and correcting exported CSV data • Editing CSV or TSV files without spreadsheet software • Sorting and filtering tabular data • Preparing sample data and test data • Masking personal information before sharing files • Comparing records between two CSV files • Reviewing multiple data files side by side Key features: • CSV viewer and editor • TSV viewer and editor • Spreadsheet-style table interface • Standalone CSV and TSV editor • Drag-and-drop file opening • Add, copy, edit, and delete rows • Add, remove, and reorder columns • Sort and filter tabular data • Freeze rows and columns • Open and arrange multiple files • Mask supported personal information • Compare records in two CSV files