@keeveeg/exceljs (npm): Excel Workbook Manager - Read and Write xlsx and csv Files.
Keywords: xlsx|json|csv|excel|font|border|fill|number|format|number format|alignment|office|spreadsheet|workbook|defined names|data validations|rich text|in-cell format|outlineLevel|views|frozen|split|pageSetup|exceljs|hacktoberfest|streaming-workbook|workbook-writer|worksheet|xlsx-workbook|xlsxreader|xlsxwriter