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 | 🔵 The .xlsx format came out with Excel 2007 as part of the Office Open XML (OOXML) standard and is way better than the old .xls format. It uses XML inside a ZIP file, which makes it simpler to read data and arrange stuff like worksheets. This format can handle a lot of data – over a million rows and 16,384 columns in each sheet, so it’s great for big sets of data. It also has cool things like formulas, charts, pivot tables, and VBA macros. Since it uses XML files, the file sizes stay pretty small. |
| Technical details | 🔵 The .xlsx format works well on different systems, has security stuff like digital signatures and encryption, and even a version (.xlsm) that supports macros for creating detailed documents. Since Excel 2007, the format .xlsx has become the standard for spreadsheets in Microsoft Excel. It is based on Office Open XML and uses XML and ZIP to reduce the file size. Files.xlsx allows you to create complex tables with data, formulas, graphs, and any design. You can even make pivot tables. It's got better security and works faster than .xls, so lots of people use it for business, school, and keeping their personal data straight. |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |