CSV to Excel

Convert a CSV to Excel (.xlsx)

Opening a CSV directly in a spreadsheet can turn 00123 into 123 and long ids into rounded numbers. Convert it to a workbook that keeps them.

Open workspace

When this helps

Use this when someone asks for an .xlsx file, or when a spreadsheet keeps changing your codes and ids on opening a CSV.

For example

A task you can finish here

A product list with article numbers like 000451 and 20-digit barcodes: saved as Excel, the article numbers keep their zeros and the barcodes stay exact, while prices and quantities are numbers.

The workflow

Three clear steps

01
Open the CSV
Check in Files that the separator and the accents look right; change them if not.
02
Clean it if you like
Apply any steps; the grid shows the copy as it will be saved.
03
Save as Excel
In Save, choose Excel (.xlsx). Several sheets become one workbook with a sheet each.

Your files and the public site

Open files only in the separate Table workspace. Its processing runs in your browser; this public site does not receive your files, their names, what they contain or any setting.Read the privacy information.

Questions

Can it open Excel files too?

Yes, .xlsx workbooks up to 25 MB: each sheet is read as its values. Formulas are read as their last calculated results, without styles, comments or charts. Older .xls files and password-protected workbooks are not supported.

Have the files been tested in Excel?

They are checked by reading them back in the browser. Opening them in Excel, Numbers and LibreOffice has not yet been tested for this preview.

Ready to make the copy?

Your files stay unchanged.