Online XLSX converter
Choose file to convert
Drop files here. 100 MB maximum file size or Sign Up
Easily convert documents to the xlsx format for free using our online converter.
Converting your file to xlsx is easy with these steps.
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.
A free and online converter for xlsx files.
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.
You don't need to worry about security.
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.
Everything is stored in the cloud.
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 – is an e-book created with one of the versions of the Excel program older than 2007. Thus the data have the form of tables consisting of columns and lines. Each table is divided into cells with a unique address, consisting of numeric and alphabetic characters. Cells contain data, both manually entered, and information that was obtained as a result of calculations. The extension allows the use of images, diagrams, and graphic information. XLSX files are formatted based on the Open XML standard, which will enable you to compress data by the type of ZIP. The archive contains a file for describing the table and individual files for each of its worksheets. The format makes it possible to develop and edit complex multi-sheet spreadsheets with various formulas and data sources. |
| Technical details | 🔵 Using the XLSX extension helps to optimize the file's content, the technology of managing, and restoring information. The format significantly increases the capabilities of binary files of obsolete Excel program variants. All applications that display XML can work correctly with the XLSX extension. Due to the preservation of data in XML format, reliable data storage is provided. This allows you to transfer files over local networks seamlessly. |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
FAQ
❓ 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.