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CSV to XLS converter

Convert CSV to XLS online from any device with a free converter.

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We have already processed 4,746,089 files with total size of 7,374,667 Mbytes

About Conversion app

Convert CSV files online instantly, no sign-up required. You can convert your CSV documents on any platform—Windows, Linux, or macOS. Upload your file, choose the output format, and press convert. When the process is done, your XLS file will be ready for download.

The CSV file's size and structure affect conversion time, though most files are processed in seconds. Advanced features allow you to convert password-protected documents and receive conversion results via email.

No matter where you are, convert your CSV documents seamlessly on any device, including smartphones. Available online anytime, this conversion app is completely free for basic scenarios.

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CSV

Comma Separated Values File

CSV is a simple, widely used file format for storing tabular data in plain text, making it easy to exchange information between different applications and systems. It is supported by numerous tools, including spreadsheet software like Microsoft Excel and Google Sheets, programming languages like Python and R, and database management systems. The format consists of rows of data separated by line breaks, with each row containing values separated by commas (or other delimiters like semicolons), and it can optionally include a header row, support text encoding, and handle complex data through quoting and escaping mechanisms.

XLS

Microsoft Excel Binary File Format

The XLS file format is a binary file format used by Microsoft Excel to store spreadsheet data, including text, numbers, formulas, and formatting. It is supported by various spreadsheet applications like Microsoft Excel, LibreOffice Calc, and Apache OpenOffice, as well as online tools like Google Sheets. The format organizes data into worksheets with rows and columns, supports advanced features like macros, charts, and conditional formatting, and is part of the broader Excel ecosystem, though it has been largely replaced by the XML-based XLSX format.

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APIs available

Convert popular document and image file formats in your app. The GroupDocs.Conversion APIs are available for .NET, Java, and many other platforms and languages.

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How it works

How to convert CSV to XLS

Step 1
Click inside the file drop area to upload CSV file or drag & drop CSV file.
Step 2
Click on Convert button. Your CSV files will be uploaded and converted to XLS result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the XLS file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert CSV into many other file formats. Please see the complete list below.

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