=OPEN(your_spreadsheet)
Open & fix your spreadsheet
Your file opens here as a live, editable grid. Problem cells are highlighted — errors, stale values, numbers stored as text, formulas that break their column's pattern. Click any cell to inspect its formula, edit it, watch dependents recompute instantly, and download the repaired .xlsx when you're done.
Drop your spreadsheet here
It opens right here as an editable grid — click cells, fix formulas, watch everything recompute, then download the repaired file.
Your file never leaves this browser — parsing, editing, and recomputation happen locally.
.xlsx, .xls, or .csv, up to 8 MB. From Google Sheets: File → Download → Microsoft Excel (.xlsx).