CSV to XLSX Converter

Convert CSV to XLSX online, from any device with a modern browser like Chrome and Firefox.

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Convert your CSV files online. You can convert your CSV documents from any platform (Windows, Linux, macOS). No registration needed. Just drag and drop your CSV file on upload form, choose the desired output format and click convert button. Once conversion completed you can download your XLSX file.

You even can perform more advanced conversions. For example you can convert password protected documents. Just expand LoadOptions and enter the password of your file. Or you can add a watermark to the converted XLSX file. Expand the ConvertOptions and fill the fields for watermarking.

Converted XLSX files are stored in the cloud. Privacy is 100% guaranteed. All documents are removed from the cloud after 24 hours.

You can convert your CSV documents from anywhere, from any machine or even from a mobile device. The CSV converter is always available online and is completely free.

Free Document Conversion, Viewer, Merger app for Windows

  • Easily convert, view or merge unlimited files on your own Windows PC.
  • Process Word, Excel, PowerPoint, PDF and more than 100 file formats.
  • No limit of file size.
  • Batch conversion of multiple files.
  • One app with rich features like Conversion, Viewer, Merger, Parser, Comparison, Signature
  • Regular FREE updates with new features coming every month
Free Download

CSVComma Separated Values File

Files with CSV (Comma Separated Values) extension represent plain text files that contain records of data with comma separated values. Each line in a CSV file is a new record from the set of records contained in the file. Such files are generated when data transfer is intended from one storage system to another. Since all applications can recognize records separated by comma, import of such data files to database is done very conveniently.

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XLSXMicrosoft Excel Open XML Spreadsheet

XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.

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How to convert CSV to XLSX

  • Open our free CSV to XLSX converter website.
  • Click inside the file drop area to upload CSV file or drag & drop CSV file.
  • Click on Convert button. Your CSV files will be uploaded and converted to XLSX result format.
  • Download link of result files will be available instantly after conversion.
  • You can also send a link to the XLSX file to your email address.
  • Note that file will be deleted from our servers after 24 hours and download links will stop working after this time period.

FAQ

  • ❓ How can I convert CSV?
    First, you need to add a file for conversion: drag & drop your CSV file or click inside the white area to choose a file. 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?
    This converter works fast. You can change CSV to XLSX in a few seconds.
  • 🛡️ Is it safe to convert CSV to XLSX using our free converter?
    Of course! The download link of XLSX files will be available instantly after conversion. We delete uploaded files after 24 hours and the download links will stop working after this time period. No one has access to your files. File conversion (including CSV is absolutely safe.
  • 💻 Can I convert CSV to XLSX on Linux, Mac OS or Android?
    Yes, you can use our free CSV to XLSX converter on any operating system that has a web browser. Our CSV to XLSX converter works online and does not require any software installation.
  • 🌐 What browser should I use to convert CSV?
    You can use any modern browser to convert CSV, for example, Google Chrome, Firefox, Opera, Safari.
  • </> How can I get the source code for CSV to XLSX conversion?
    Detailed examples are available at GitHub in the form of executable projects. If you are only interested in CSV to XLSX conversion then check .NET & Java examples.

Other Supported Conversions

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

CSV TO TIFF Converter (Tagged Image File Format)
CSV TO TIF Converter (Tagged Image File Format)
CSV TO JPG Converter (Joint Photographic Expert Group Image File)
CSV TO PNG Converter (Portable Network Graphic)
CSV TO GIF Converter (Graphical Interchange Format File)
CSV TO BMP Converter (Bitmap File Format)
CSV TO ICO Converter (Microsoft Icon File)
CSV TO PSD Converter (Adobe Photoshop Document)
CSV TO WMF Converter (Windows Metafile)
CSV TO EMF Converter (Enhanced Metafile Format)
CSV TO DICOM Converter (Digital Imaging and Communications in Medicine)
CSV TO WEBP Converter (Raster Web Image File Format)
CSV TO SVG Converter (Scalable Vector Graphics File)
CSV TO JP2 Converter (JPEG 2000 Core Image File)
CSV TO EMZ Converter (Enhanced Windows Metafile Compressed)
CSV TO WMZ Converter (Windows Metafile Compressed)
CSV TO SVGZ Converter (Compressed Scalable Vector Graphics File)
CSV TO TGA Converter (Targa Graphic)
CSV TO PSB Converter (Adobe Photoshop Image File)
CSV TO PPT Converter (PowerPoint Presentation)
Convert CSV TO PPS (Microsoft PowerPoint Slide Show)
Convert CSV TO PPTX (PowerPoint Open XML Presentation)
Convert CSV TO PPSX (PowerPoint Open XML Slide Show)
Convert CSV TO ODP (OpenDocument Presentation File Format)
Convert CSV TO OTP (Origin Graph Template)
Convert CSV TO POTX (Microsoft PowerPoint Open XML Template)
Convert CSV TO POT (PowerPoint Template)
Convert CSV TO POTM (Microsoft PowerPoint Template)
Convert CSV TO PPTM (Microsoft PowerPoint Presentation)
Convert CSV TO PPSM (Microsoft PowerPoint Slide Show)
Convert CSV TO FODP (OpenDocument Flat XML Presentation)
Convert CSV TO HTML (Hyper Text Markup Language)
Convert CSV TO HTM (Hypertext Markup Language File)
Convert CSV TO MHT (MIME Encapsulation of Aggregate HTML)
Convert CSV TO MHTML (MIME Encapsulation of Aggregate HTML)
Convert CSV TO XLS (Microsoft Excel Binary File Format)
Convert CSV TO XLSM (Microsoft Excel Macro-Enabled Spreadsheet)
Convert CSV TO XLSB (Microsoft Excel Binary Spreadsheet File)
Convert CSV TO ODS (Open Document Spreadsheet)
Convert CSV TO XLTX (Microsoft Excel Open XML Template)
Convert CSV TO XLT (Microsoft Excel Template)
Convert CSV TO XLTM (Microsoft Excel Macro-Enabled Template)
CSV TO TSV Conversion (Tab Separated Values File)
CSV TO XLAM Conversion (Microsoft Excel Macro-Enabled Add-In)
CSV TO CSV Conversion (Comma Separated Values File)
CSV TO FODS Conversion (OpenDocument Flat XML Spreadsheet)
CSV TO SXC Conversion (StarOffice Calc Spreadsheet)
CSV TO PDF Conversion (Portable Document)
CSV TO EPUB Conversion (Digital E-Book File Format)
CSV TO XPS Conversion (Open XML Paper Specification)
CSV TO TEX Conversion (LaTeX Source Document)
CSV TO XML Conversion (Extended Markup Language)
CSV TO JSON Conversion (JavaScript Object Notation File)
CSV TO DOC Conversion (Microsoft Word Document)
CSV TO DOCM Conversion (Microsoft Word Macro-Enabled Document)
CSV TO DOCX Conversion (Microsoft Word Open XML Document)
CSV TO DOT Conversion (Microsoft Word Document Template)
CSV TO DOTM Conversion (Microsoft Word Macro-Enabled Template)
CSV TO DOTX Conversion (Word Open XML Document Template)
CSV TO RTF Conversion (Rich Text File Format)
CSV TO ODT Conversion (Open Document Text)
CSV TO OTT Conversion (Open Document Template)
CSV TO TXT Conversion (Plain Text File Format)
Viewer Annotation Conversion Comparison Signature Assembly Metadata Search Parser Watermark Editor Merger Redaction Classification Splitter Translation Unlock Protect Scanner