culacc
GridCraft by Culacc

Free online spreadsheet editor

Formulas, formatting, charts and sheets, like Excel. Open XLSX, XLS, ODS and CSV files in your browser.

  • Free to use
  • No sign-up to edit
  • Nothing uploaded while you edit
  • Opens XLSX, XLSM, XLSB, XLS

Open a spreadsheet

Drop it here, or choose it from your device

GridCraft in a browser editing a budget spreadsheet with monthly costs and totals, under an Excel-style ribbon
GridCraft in your browser, with the sample spreadsheet.

What you can do with GridCraft

Formulas, formatting, charts and sheets, like Excel. Open XLSX, XLS, ODS and CSV files in your browser.

Formulas

Excel formulas, including dynamic arrays, recalculated as you type.

Formatting

Number formats, colours, borders and conditional formatting.

Charts

Turn a table into a chart in a few clicks.

Many sheets

Work across several sheets in one workbook.

Excel files as they are

Opens XLSX, XLSM, XLS, ODS, CSV and TSV; saves XLSX, ODS, CSV or PDF.

Private by default

Your workbook opens in your browser and isn’t uploaded while you edit.

How it works

Three steps, all in your browser.

  1. Open your spreadsheetChoose it from your device or drop it on the page. It opens in GridCraft right here, nothing to install.
  2. Edit itUse the tools and shortcuts you know. Your spreadsheet stays on your device while you work.
  3. Save itDownload it to your computer, or keep it in your Culacc cloud. Saving needs a free Culacc account.

Formats

GridCraft opens and saves the files you already have.

Opens

XLSX, XLSM, XLSB, XLS, ODS, CSV, TSV

Saves

XLSX, ODS, CSV, TSV, PDF, HTML

Questions

Can I edit an Excel file online without Excel?

Yes. Open the XLSX here, edit it and save it again as XLSX.

Do formulas work?

Yes. Formulas are calculated as you type, and they’re kept when you save as XLSX.

Is it free?

Editing is free and needs no account. To save, create a free Culacc account or log in.

Can I open CSV files?

Yes, and save them again as CSV, or as XLSX to keep formatting.

GridCraft is new and gets better every week. For important work, keep a copy of your original file.

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Every app works the same way: open a file, edit it in your browser, save it.

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All your files, and the apps to edit them

Culacc is EU-hosted cloud storage that connects your Google, Microsoft and Canva accounts, syncs your devices, and opens your files in these apps.

Create a free account