CSV to XLSX

Convert CSV to XLSX online for free

1: Choose multiple local CSV files or enter the URL of an online CSV file. 2: Choose "XLSX" as target format and set options. 3: Click the "START CONVERSION" button to convert CSV files to XLSX online.

Choose files or enter remote file URL

Set conversion options (optional)

# FILE NAME FILE SIZE DOWNLOAD

CSV

Comma-Separated Values

File extension: .csv

In computing, a comma-separated values (CSV) file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by commas. The use of the comma as a field separator is the source of the name for this file format.

XLSX

Office Open XML Document

File extension: .xlsx, .xlsm

The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents. There are formats for word processing documents, spreadsheets and presentations as well as specific formats for material such as mathematical formulae, graphics, bibliographies etc.