Opens and saves .xlsx
Work with Excel workbooks and CSV files, and export to PDF, HTML, Markdown or JSON.
ZFlow · An online spreadsheet that works with Excel files
An online spreadsheet that works with Excel files
Calculate, analyse and chart your data in the browser, and keep working with .xlsx files.
What you can do
About 580 functions
From SUM and IF to XLOOKUP, statistics, finance, engineering, text, dates and dynamic arrays.
PivotTables and charts
Summarise data with PivotTables and show it in column, line, pie, scatter, map and other charts, with sparklines.
Formatting
Number formats, fonts, 13 border styles, fills with patterns and gradients, rotated text, conditional formatting and cell styles.
Data tools
Sort and filter, remove duplicates, text to columns, Flash Fill, data validation, Goal Seek and Data Analysis.
Find and replace
Search a sheet or the whole workbook in formulas, values or notes with ? and * wildcards, and list every result.
Printing
Print areas, page breaks, titles on every page, fit to page and headers and footers.
Labs
Graph equations, analyse signals and run science and engineering simulations right in the workbook.
Questions
Can it open Microsoft Excel files?
Yes, it opens and saves .xlsx files, including formulas, formatting and charts.
Is it free?
Yes, the spreadsheet is included on the Free plan.