CSV to XLSX Converter

Convert CSV to XLSX online quickly and easily. Just upload your file, convert it, and download the XLSX in seconds.

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What is CSV ?

CSV, or Comma-Separated Values, is a simple file format used to store tabular data in plain text. Each line in a CSV file corresponds to a row in the table, and each value within that line is separated by a comma, making it easy to import and export data between different programs.

CSV format  ▶

What is XLSX ?

The XLSX file format is a spreadsheet file format created by Microsoft Excel, which is part of the Microsoft Office suite. It is based on the Open XML format and is widely used for storing and managing data in tabular form, allowing users to perform calculations, create charts, and analyze information efficiently.

XLSX format  ▶

How to Convert CSV to XLSX in Just a Few Steps

  1. Upload your CSV file
    Drag and drop your CSV file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
  2. Choose XLSX as output format
    The converter is preset to XLSX, but you can select any other output format before converting.
  3. Adjust settings (optional)
    If you like, tweak output options such as resolution, quality, or compression before converting.
  4. Convert the file
    Click the 'Convert' button. The conversion takes only a few seconds.
  5. Download your converted file
    Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.

Why Convert CSV to XLSX file?

CSV is a plain, no-frills way of storing data as simple rows of comma-separated values, readable by almost any program but stripped of any formatting or structure. Converting CSV to XLSX turns that raw data into a proper Microsoft Excel spreadsheet, where the values land neatly in cells and columns and you gain everything Excel offers: formatting, formulas, multiple sheets, charts, and filters.

This is the conversion to reach for when you have exported data as CSV and now want to actually work with it. An XLSX file lets you sort, calculate, style, and present the information in ways a plain CSV never could, and it opens cleanly in Excel and other modern spreadsheet apps. If you simply need to hand raw data to another program, CSV is fine, but for analysis and presentation, XLSX is far more powerful.

Start converting CSV to XLSX now — it’s fast, safe, and completely online!

Frequently Asked Questions