Skip to content

Convert .CSV to .XLSX

Convert .CSV to .XLSX in your browser

No upload and no installation: choose your file and download the result.

Your files are converted in your browser and are never uploaded to a server.

Conversion possible

Convert CSV to XLSX free in your browser: no upload, no sign-up. Choose your file, click Convert and download the XLSX.

How to convert .CSV to .XLSX

  1. Choose your CSV file above, or drag it onto the field.
  2. Make sure XLSX is selected as the target format.
  3. Click Convert and download the result.

What to expect

  • Numbers are stored as real numbers so Excel can calculate with them; values with leading zeros such as 007 stay text.

Created with the help of AI and not yet reviewed editorially. How we use AI and review content

About .CSV

.CSV stands for Comma-Separated Values, a format that stores data in a tabular form with each line representing a data record. It is widely used for data exchange due to its simplicity and compatibility with many applications.

.CSV files are plain text files used to store tabular data, which can be opened with spreadsheet software or text editors on various platforms.

Learn more about .CSV.

About .XLSX

XLSX is the default format for Excel workbooks, utilizing the Office Open XML standard. It stores data in a compressed ZIP format containing XML files for worksheets and other components.

XLSX files are widely-used spreadsheet files that store data, formulas, and charts, and are compatible with various spreadsheet applications.

Learn more about .XLSX.