Workbook Analyzer
Profile every sheet, column and formula in one report.
A full health check for a workbook: row and column counts, data types per column, null rates, distinct values, formula inventory, external links and the largest contributors to file size. The report is the fastest way to understand a file someone else built.
- Price
- Free
- Your files
- Never uploaded
- Runs
- In your browser
or drag it here
.xlsx, .xls, .xlsm, .ods · up to 50 MB · processed locally, never uploaded
Excel and spreadsheet files only. Export from Google Sheets as .xlsx or .csv.
Files stay on your device
What it does well
- Column-level profiling: type, nulls, distinct count, min/max and samples
- Formula inventory grouped by function with usage counts
- External link and volatile function detection with recalculation cost
How to use Workbook Analyzer
- 1
Upload the workbook to analyse.
- 2
Wait for the profile to build — a few seconds for most files.
- 3
Explore per-sheet and per-column statistics.
- 4
Download the report as XLSX or PDF.
Watch a walkthrough
Common problems and fixes
The analysis stalls on a very large file.
Turn on sampling, which profiles the first 50,000 rows per sheet — enough for accurate type and null statistics.
Column types are reported as mixed.
That is a real finding, not a bug: the column genuinely contains more than one type. Run the Data Validator to see which rows differ.
Frequently asked questions
More analyse tools
Profile every sheet, diff two versions cell by cell, read hidden metadata and find the bloat that makes a workbook slow to open.
Browse Analyse