Summarize and total up your data — free.
Upload a spreadsheet and get an instant read on every column — the total of each
numeric column plus its average and range, and the count, blanks and distinct values of every
column. Download the whole summary as a .csv. Your original workbook is never
changed.
What you get
For every numeric column we show the total, the average, and the range from smallest to largest. For every column — numbers or text — we show how many values it holds, how many are blank, and how many are distinct, with an example value. It’s the fastest way to get your arms around a sheet you didn’t make.
Real totals, not estimates
The totals are summed from the exact cell values, so “total up my data” means an actual sum —
not a rounded guess. Everything downloads as a clean .csv you can drop into another
sheet.
Your original file is safe
The page reads your file in memory to summarize it, then discards it. Your uploaded
.xlsx is never changed and never stored — you download a fresh summary file, so
nothing is ever lost.
Want totals grouped by category, value counts, or a full pivot table? That’s coming next. Want this inside your AI agent, on your own machine, with no upload at all? Install xlsx-for-ai and ask Claude or Cursor to “summarize this spreadsheet.”