PLAIN TEXT DATA. A PROPER WORKSPACE.
A CSV editor online.
Keep the data on your side.
Open a CSV or TSV file as a worksheet. Edit your data, inspect rows and columns, and export a new copy from the spreadsheet workspace.
Drop your spreadsheet here
or choose a file from your device
CSV & TSV FILES
Up to 20 MB · Processed locally in your browser
OPEN. WORK. DOWNLOAD.
Give your comma-separated data
a little more room to work.
CSV is useful for moving tabular data between applications, but it carries no workbook styling or multiple sheets. ExcelCraft opens CSV and TSV data in a grid so you can inspect and change cells. Use File → Save As for a CSV export, or download XLSX to keep workbook formatting and additional sheets.
- 01
Open CSV or TSV
Choose a local text-based data file.
- 02
Check the import
Review column boundaries, text encoding, dates, and leading zeros before making changes.
- 03
Choose the right output
Use File → Save As for CSV, or Download XLSX to keep spreadsheet features.
KNOW YOUR WORKSPACE
Useful by design.
Clear about the limits.
A real spreadsheet engine, with compatibility still growing. Keep your original workbook and check important data after editing or conversion.
GridCraft is in alpha. Read the engine’s compatibility notes
| IN YOUR WORKBOOK | WHAT TO EXPECT |
|---|---|
| Values & worksheets | Supported · Multiple sheets and cell data |
| Formulas & formatting | Supported · Compatibility varies by feature |
| Charts & workbook objects | Evolving · Check complex layouts |
| Legacy XLS files | Data import · Values, formulas, number formats |
| XLSB & ODS files | Saved values · Limited formula and style import |
| VBA macros | Not executed |
| Cloud save & collaboration | Not available · Download to keep your work |
A FEW PRACTICAL ANSWERS
Before you open
that workbook.
Your file stays local. Your original stays intact. Your next step stays simple.
Can I edit a CSV without uploading it?
Yes. The file is parsed and edited in your browser. ExcelCraft does not upload its contents.
Does CSV preserve formatting?
No. CSV stores plain tabular text. Use XLSX if you need styles, formulas, or multiple worksheets.
What should I check after importing?
Check delimiters, accented characters, dates, long numbers, and values with leading zeros. Text import may interpret values differently from the application that created the file.
Can I open a tab-separated file?
Yes. TSV files are supported.