🔄 Conversion & Encoding

Format, file, archive, unit, and encoding conversion tools

Generate an index sheet for workbook with links to each sheet and core statistics

Programmatically build dynamic Excel reports with multi-level merged headers, grouped subtotal, and dynamic columns

Fill existing styled/formula Excel templates by replacing {{variable}} placeholders only

Split a multi-sheet workbook into independent files by sheet name, with ZIP output

Merge multiple similarly structured workbooks as multiple sheets or append all rows into one sheet

Append new rows incrementally and emit next processing cursor based on time or primary-key column

Fetch JSON from REST or GraphQL API and write mapped records into an Excel sheet with automatic pagination

Infer JSON Schema from worksheet headers and sample rows with types, enum candidates, and basic constraints

Render an Excel range to HTML table for web preview with merged cells and basic background colors

Batch process XLSX files in S3-compatible object storage with filtering/cleaning and upload processed outputs back

Read Excel headers and rows to generate SQL INSERT statements for bulk loading

Convert a selected Excel range or whole sheet into Markdown table format