Open Madosuite
Excel workbook

Open .xlsx files free in your browser

The spreadsheet format of Microsoft Excel since 2007: sheets, formulas, charts and pivot tables. Grid in Madosuite opens .xlsx files and saves them back, in a browser tab, without Excel.

Open a .xlsx fileAbout Grid
Grid in Madosuite

Three steps

  1. Open Madosuite

    In your browser. A small Linux machine starts on your device.

  2. Upload the file

    In Files, press Upload and pick your .xlsx file. Then open it with Grid.

  3. Edit and save

    Save it as .xlsx again, or export CSV or TSV, and download it.

Grid keeps pivot tables in .xlsx. Old .xls files open with values and formulas, without formatting.

Convert .xlsx files

XLSX to PDF

A budget or invoice that nobody should edit, and that prints the same everywhere.

Grid opens

XLSXCSVTSVXLS (values and formulas)XLSB and ODS (data)

Grid saves

XLSXCSVTSVPDF

Questions

How do I open a .xlsx file without Excel?

Open Madosuite in your browser, upload the file in Files, and open it with Grid. It is free.

Can I edit it and save it again?

Yes. Grid saves XLSX, CSV, TSV, PDF.

Is my file uploaded?

No. It goes into the Linux machine that Madosuite runs in your browser, on your device.

Will it look the same?

Grid keeps pivot tables in .xlsx. Old .xls files open with values and formulas, without formatting.

Is Madosuite free?

Yes. The apps run on your own device, in the browser tab, so there is no server time to pay for. There is no trial period.

Grid as a free Excel alternative