Features
- Formula errors with cell addresses.
- Hidden sheets, rows and columns.
- Numbers stored as text (that SUM ignores) and mixed text/real dates.
- Typed-over formulas in calculated columns.
- Links to other workbooks, volatile formulas, extra spaces, duplicate and empty rows.
- Fixed copy: numbers converted, spaces trimmed, empty/duplicate rows removed.
How to use it
Choose an .xlsx (or .csv) file.
Open each finding to see the cells, fix them in Excel - or download the automatic fixed copy.
Free and private
Everything happens inside your browser: your files are read on your own device and are never uploaded, stored or seen by anyone else.
Questions
Does the fixed copy keep my formulas?
No - it keeps the values (formulas become their results) and simple formatting. Keep your original for the formulas.
Can it open .xls files?
Save old .xls files as .xlsx first.
Is the file uploaded?
No, it is read in your browser.
Is it free?
Yes - free and unlimited, with no sign-up and no watermark.