Focused purpose
What this tool does
Convert Excel XLSX sheets to CSV locally without running formulas. Choose sheets, inspect cached values and dates, and download checked CSV files without an account.
- ✓ Sheet selection
- ✓ Cached formula values only
- ✓ Excel date handling
- ✓ Multi-sheet ZIP export
Workflow
How to use it
- 01
Open an unencrypted XLSX workbook.
- 02
Choose sheets and inspect cached values.
- 03
Configure CSV output and download files.
Available controls
Available options
- Choose one or several sheets.
- Select CSV delimiter and encoding.
- Preview merged-cell gaps.
- Export each selected sheet separately.
Two-sheet workbook preview
Example before and after
Each sheet must become a separate CSV without evaluating workbook formulas.
Before
Workbook sheets: Customers (3 rows) Orders (5 rows)
After
workbook-customers.csv workbook-orders.csv
Expected result: Selected sheets are exported as checked CSV files in a ZIP.
Practical scenarios
Common use cases
Convert XLSX without desktop Excel.
Extract several sheets into separate CSV files.
Prepare workbook data for a database.
HONEST LIMITS
Important limitations
- iFormulas are never calculated; only stored cached values can be read.
- iMerged cells and visual formatting do not have a direct CSV equivalent.
FAQ
Questions about this tool
Are Excel formulas run?
No. The browser reads cached cell values only and never executes macros or formulas.
Can I convert multiple sheets?
Yes. Select sheets and receive separate CSV files in a ZIP.
What happens to merged cells?
Only the stored top-left value exists in CSV; the preview warns about merged ranges.