CSV to XLSX Converter

Batch convert csv files to xlsx format online for free

Choose files or drag & drop them here.
Only you have access to your files.
All files will be deleted after one hour.

How to convert CSV files to XLSX online?

Step-by-step guide to convert csv to xlsx using AnyConv. It works on PC (Windows, Mac, Linux) and mobile devices (iPhone, Android).

Upload CSV-file

Drag and drop your CSV file into the upload area. The maximum file size is 100 MB.

CSV to XLSX

Click "Convert" to change csv to xlsx. The conversion usually takes a few seconds.

Download your XLSX

Now you can download the XLSX file. The download link only works on your device.

FAQ

❓ How can I convert files from CSV to XLSX?

First you need to add file for conversion: drag and drop your CSV file or click the "Choose File" button. Then click the "Convert" button. When CSV to XLSX conversion is completed, you can download your XLSX file.
⏱️ How long does it take to convert CSV to XLSX?

Document conversion is pretty fast. You can change CSV to XLSX in a few seconds.
🛡️ Is it safe to convert CSV to XLSX on AnyConv?

Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including CSV to XLSX) is absolutely safe.
💻 Can I convert CSV to XLSX on Mac OS or Linux?

Yes, you can use AnyConv on any operating system that has a web browser. Our CSV to XLSX converter works online and does not require software installation.

Information about CSV and XLSX file formats

🔸 File format	CSV	XLSX
🔸 Full name	CSV - Comma-Separated Values	XLSX - Office Open XML Document
🔸 File extension	.csv	.xlsx, .xlsm
🔸 MIME type	text/csv	application/vnd.-openxmlformats-officedocument.-spreadsheetml.-sheet
🔸 Developed by	Informational RFC	Microsoft
🔸 Type of format	multi-platform, serial data streams	Spreadsheet
🔸 Description	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 comma as a field separator is the source of the name for this file format.	The Office Open XML file formats are file formats that can be used to represent electronic office documents. There are formats for word processing documents, spreadsheets, presentations, and specific formats for material such as mathematical formulae, graphics, bibliographies, etc.
🔸 Technical details	The CSV file format is not standardized. The basic idea of separating fields with a comma is clear, but that idea gets complicated when the field data may also contain commas or even embedded line-breaks. CSV implementations may not handle such field data or use quotation marks to surround the field.	Office Open XML documents are stored in Open Packaging Convention (OPC) packages, which are ZIP files containing XML and other data files, along with a specification of the relationships between them. Depending on the type of document, the packages have different internal directory structures and names.
🔸 File conversion	CSV conversion	XLSX conversion
🔸 Associated programs	Microsoft Excel, LibreOffice Calc	Microsoft Office, LibreOffice, Kingsoft Office, Google Docs.
🔸 Wiki	https://en.wikipedia.org/wiki/Comma-separated_values	https://en.wikipedia.org/wiki/Office_Open_XML_file_formats

CSV to XLSX Conversion Quality Rating

4.8 (1499 votes)

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