Add Simple and Calculated Fields to Excel Data Online
Use our free online tool to add simple and calculated fields to your Excel 2007+ (.xlsx) data quickly
Add Fields
This tool makes it simple to add new columns to your Excel 2007+ (.xlsx) file. You can create fields with fixed values, empty placeholders, or even dynamic content using formulas and other data in your file. It’s useful for when you need to enrich your data, add missing fields before importing into another system, or prepare your file for further processing. Whether you're working with customer lists, inventory spreadsheets, or survey results, this tool gives you full control over how and where to insert new columns.
Excel 2007+ (.xlsx)
Excel 2007+ refers to the file format used by Microsoft Excel versions from 2007 onwards, typically having the .xlsx extension. This format is part of the Office Open XML (OOXML) standard and represents a significant change from the older binary format used in previous versions Excel. Excel files are a compressed Zip package which reduces the file sizes and makes them easier to manage and share. Excel support 1,048,576 rows and 16,384 columns per sheet, more complex formulas, and advanced features like conditional formatting, richer graphics, and improved security options.