Convert CSV to XLSX
Choose file to convert
You can effortlessly convert your csv file to xlsx, along with a multitude of other formats, using our complimentary online converter.
How to convert csv to xlsx?
Step 1
Upload an csv-file
You can select the csv file you wish to convert from your computer, Google Drive, Dropbox or just drag and drop it onto the page.
Step 2
Select "to xlsx"
Choose xlsx or any other of the 200+ supported formats that you wish to convert to.
Step 3
Download your xlsx file
Please wait for the conversion to be completed, then click on the download button to get your converted file in the xlsx format.
The security of your files is our priority
Recognizing the crucial significance of our users' data security, we have put a number of measures in place to guarantee reliable file conversion without the jeopardy of information leakage or privacy infringements.
Data Encryption
Every piece of information uploaded to our platform undergoes SSL encryption, safeguarding privacy during the transmission process.
Secure Storage
Upon completion of the conversion, the files are retained on secure servers for a duration of 24 hours and are then automatically obliterated, preventing any third-party access.
Safe Scripting
We regularly screen our file conversion tools for any malicious code or vulnerabilities, mitigating the risk of potential cyber threats.
Best tool to convert csv to xlsx
Converting csv to xlsx is fast and easy
Just drag and drop your csv files onto the webpage, and you'll have the capability to convert them to xlsx or over 250 different file formats, all without the need to register, provide an email address, or include a watermark.
Safe csv to xlsx Conversion
Immediately upon uploading your csv files, we delete them without delay. Converted files are then removed after 24 hours. Additionally, we ensure that all file transfers are secure through advanced SSL encryption.
No Software Installation Required
There's no need to go through the inconvenience of installing any software. We conveniently handle all csv to xlsx conversions in the cloud, which implies that none of your computer's resources will be consumed in the process.
Comma Separated Values File
| Extension | .csv |
| Category | 🔵 documents |
| Programs | 🔵 Microsoft Excel 🔵 Microsoft Works 🔵 Corel Quattro Pro 🔵 Apache OpenOffice 🔵 LibreOffice 🔵 Microsoft Notepad 🔵 Libre Office 🔵 MobiSystems OfficeSuite Pro 7 |
| Description | 🔵 The `.csv` (Comma-Separated Values) format is a straightforward text format used for presenting tabular data. Each line in this format represents a row in a table, and the individual fields within a row are separated by specific characters called delimiters. The most common delimiter is a comma, but semicolons or tabs can also be used. As a simple text format, it's universally compatible and easy to edit. A CSV file consists of rows and fields, separated by the chosen delimiter, without any predetermined structure. All data within the file is treated as text strings, which is fundamental to how data is handled in the `.csv` format. |
| Technical details | 🔵 You can add optional headers to `.csv` files, and it supports various text encodings, such as UTF-8 and ASCII. If a field includes delimiters, it's usually enclosed in quotation marks. Any quotation marks within the field are "escaped," meaning they are read as regular text rather than special characters. While the `.csv` format isn't ideal for managing complex or linked data structures, its simplicity and versatility make it a popular choice for basic data exchange and import/export tasks. The `.csv` format works well with common software, including spreadsheets and databases, which contributes to its continued use for straightforward data tasks. The simplicity and adaptability of this format significantly contribute to its widespread use. In summary, the `.csv` format is a popular choice for basic data handling and transfer tasks because of its simplicity, versatility, and high compatibility. |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 text/comma-separated-values |
Office Open XML Document
| Extension | .xlsx |
| Category | 🔵 documents |
| Programs | 🔵 Microsoft Office 🔵 LibreOffice 🔵 Kingsoft Office 🔵 Google Docs |
| Main program | 🔵 Microsoft Office |
| Description | 🔵 Launched with Excel 2007 under the Office Open XML (OOXML) standard, the .xlsx format represents a significant improvement over the older .xls format. It uses XML, embedded within a ZIP archive, to make data easier to read and to organize elements like worksheets and shared strings efficiently. This format can accommodate a substantial 1,048,576 rows and 16,384 columns per sheet, making it ideal for large datasets. Furthermore, it includes advanced features such as formulas, charts, pivot tables, and Visual Basic for Applications (VBA) macros. The XML files used in this format help keep file sizes smaller. The .xlsx format promotes compatibility across various platforms, integrates security measures like digital signatures and encryption, and even has a version that supports macros, known as .xlsm. This makes it useful for creating complex documents. |
| Technical details | 🔵 As of Excel 2007, the .xlsx format is the default file format for spreadsheets created in Microsoft Excel. It's part of the Office Open XML specifications and leverages XML and ZIP compression to reduce file sizes. The .xlsx format allows for the creation of complex spreadsheets containing data, formulas, charts, pivot tables, and various formatting options. With improved efficiency and security compared to the .xls format, it has become widely adopted in business, education, and personal data management. |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |