About HyperFormula is an open-source headless spreadsheet for business web apps. It comes with over 400 formulas, CRUD operations, undo-redo, clipboard support, and sorting.

ExcelTable is a pipelined table interface to read Excel files (.xlsx, .xlsm, .xlsb, .xls, .xml), ODF spreadsheet files (.ods), and flat files (delimited or positional) as if they were external tables.

How to calculate return on investment (ROI), the money an investment made relative to its cost, in Microsoft Excel.

To fix an Excel spreadsheet not adding up correctly, check the SUM function's syntax and make sure there aren't any text format cells in the sheet.

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.

Instead of memorizing long and complicated formulas, analysts can now describe what they want to do in plain English, and Excel’s AI Copilot turns those instructions into results. This is a big shift ...

Landing a job at Apple isn’t easy —but according to CEO Tim Cook, people who possess four specific qualities are much more likely to find themselves in the running.

The tool allows users to type plain-language instructions into formulas, and Excel will generate results like summaries, classifications, or tables based on the data in the sheet.

Microsoft Excel is testing a new “COPILOT” function that lets you use AI to generate summaries, tables, tags, and more based on a group of cells you specify.

Microsoft adds a new Copilot function to Excel, letting users generate, analyze, and summarize data directly in spreadsheet cells with AI.

Telstra this week posted a solid 31% full-year profit boost, but investors may be able to dial up better value elsewhere in the sector.