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Free converter
Anyfile converts an Excel binary workbook to a CSV file for free, right in your browser: the file is never uploaded.
Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.
| Formulas | Saved as their results: CSV holds values only |
|---|---|
| Formatting | Left out |
| Sheets | One CSV per sheet; several come in a ZIP |
When to use CSV: Moving tables between spreadsheets, databases and programs.
Open the file in the spreadsheet editor to choose before downloading:
.xlsb
An Excel workbook saved in a binary form instead of XML. It keeps every workbook feature, macros included, but files are often smaller and open and save faster.
Very large workbooks where file size and loading speed matter.
Opens in Excel for Windows and Mac, LibreOffice Calc
About XLSB files.csv
Rows of plain text where each value is separated by a comma, as described in RFC 4180. It stores data only: no formulas, formatting or extra sheets.
Moving tables between spreadsheets, databases and programs.
Opens in Excel, Numbers, Google Sheets, LibreOffice, any text editor
About CSV filesEverything that converts to CSV
Need to change it first? Open the spreadsheet editor
Drop your XLSB file on this page, or choose it. Anyfile converts it on your device in a moment and the CSV downloads straight away. To change it first, open it in the spreadsheet editor.
No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.
Every sheet becomes its own CSV, together in a ZIP.
Yes. Drop them together and you get one ZIP with every CSV inside.