KonvortakConvert spreadsheets
Convert data between XLSX, XLS, ODS, CSV and TSV without uploading your spreadsheet. Your files are not uploaded for processing.Convert your spreadsheet data to another format. It all happens on your phone.
- Up to 10 MB
- Up to 100,000 cells
- Original kept
Ready to download
Your files
Your results are available while this page stays open.
How to convert spreadsheets
- Choose an XLSX, XLS, ODS, CSV or TSV file up to 10 MB.
- Choose the output format. For CSV or TSV, enter the sheet number. For CSV, check the delimiter and input encoding.
- Convert, then check the data sample and downloaded file. Keep your original.
Tool limits
Data conversion does not preserve charts, macros, layout or formulas. It uses saved formula results. CSV and TSV export one sheet and prefix text that looks like a formula with an apostrophe.
Up to 10 MB, 40 MB expanded, 20 sheets, 20,000 rows and 256 columns per sheet, and 100,000 cells in total. Conversion has a 60-second time limit.
Frequently asked questions
Are formulas and charts preserved?
No. The output contains data and saved formula results, without recalculation. Charts, macros, images and layout are not preserved.
How can I export multiple sheets?
XLSX, XLS and ODS keep the data sheets. CSV and TSV export only the selected sheet, numbered from 1.
Why do some text cells get an apostrophe?
CSV and TSV cannot distinguish text from formulas. We prefix text beginning with =, +, - or @ with an apostrophe to reduce formula interpretation. Check how the destination program imports it.
Privacy and checking your results
All current operations run on your device. Keep your originals and check the downloaded file. Learn how your files and advertising are handled.
More tools
New features under evaluation
Not available in this version yet. Tell us what would help your work.