Online XLSX converter
Choose file to convert
Use our online converter to effortlessly convert your documents into the woff format, completely free of charge.
How to convert a xlsx file?
Step 1
Upload an-file
You can select the 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.
Best xlsx converter tool
Converting xlsx is fast and easy
Just drag and drop your xlsx files onto the webpage, and you'll have the capability to convert them over 250 different file formats, all without the need to register, provide an email address, or include a watermark.
Safe xlsx Conversion
Immediately upon uploading your xlsx 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 xlsx to {format2} conversions in the cloud, which implies that none of your computer's resources will be consumed in the process.
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 |