Online XLSX converter
Easily convert documents to the xlsx format for free using our online converter.
How to convert a xlsx file?
Step 1
Upload file
You can select the file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.
Step 2
Select «to xlsx»
Choose xlsx or any of the other 200+ supported formats you'd like to convert to.
Step 3
Download your xlsx file
Please wait for the conversion to complete, then click on the download button to obtain your converted file in the xlsx format.
Best xlsx converter tool
Convert xlsx Fast and easy
Simply drag and drop your xlsx files onto the webpage, and you'll be able to convert them to over 250 different file formats, all without having to register, provide an email address, or include a watermark.
Secure xlsx Conversion
As soon as you upload your xlsx files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.
No Software Installation Required
You don't have to go through the hassle of installing any software. We handle all xlsx conversions in the cloud, which means that none of your computer's resources will be used in the process.
Office Open XML Document
| Extension | .xlsx |
| Category | 🔵 documents |
| Programs | 🔵 Microsoft Office 🔵 LibreOffice 🔵 Kingsoft Office 🔵 Google Docs |
| Main program | 🔵 Microsoft Office |
| Description | 🔵 .xlsx (Microsoft Excel Open XML Spreadsheet) The .xlsx format is the default file format for spreadsheets created in Microsoft Excel, starting with Excel 2007 and later versions. It is part of the Office Open XML specification and utilizes XML and ZIP compression to reduce file sizes. The .xlsx format is capable of handling complex spreadsheets with data, formulas, charts, pivot tables, and various formatting options. It is more efficient and secure compared to the older .xls format and is commonly used in business, education, and personal data management. |
| Technical details | 🔵 Introduced in Excel 2007 as part of the Office Open XML (OOXML) standard, the `.xlsx` format represents a significant advancement from the older `.xls` format. It utilizes XML within a ZIP archive structure to enhance data readability and efficiently organize elements such as worksheets and shared strings. This format can handle extensive datasets, supporting up to 1,048,576 rows and 16,384 columns per sheet. Additionally, it includes advanced features like formulas, charts, pivot tables, and VBA macros. The use of shared XML files helps optimize file size. `.xlsx` promotes cross-platform interoperability, integrates security features such as digital signatures and encryption, and even offers a macro-enabled `.xlsm` |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
FAQs on xlsx Conversion
❓ How do I change xlsx?
To get started, either pick a file you want to convert from xlsx and select it or drag and drop it into the conversion tool. Next, select the desired format that you wish to convert your file to. Once you have selected the format, click the "convert" button and wait for the tool to finish converting your file.
⏳ What is the estimated time it will take to convert xlsx?
Typically, image conversions only take a few seconds, so you can expect a speedy conversion when changing xlsx
🛡️ Can I trust OnlineConvertFree to convert xlsx securely?
Absolutely! We take your security seriously, and guarantee the protection of your uploaded and converted files. No one will have access to your information since we delete all files once the conversion process is complete. You can trust that all types of conversions, including xlsx, are 100% safe on OnlineConvertFree.
📱 Is it possible to convert xlsx without having to install any software?
Yes, that's right! OnlineConvertFree doesn't require any installation, which means that you can convert any files, including xlsx, on your computer or mobile device, completely online.