XLSX is the modern Excel spreadsheet format introduced with Microsoft Office 2007. It uses ZIP compression and an XML-based structure, resulting in smaller files and better compatibility. XLSX supports advanced spreadsheet features and is widely used in business and data analysis.
Click the «Choose files» button and select the files you want to convert. The maximum file size is 75 MB.
Select «XLSX» as the target format. Click «Convert» to start converting files to XLSX. It will only take a few seconds.
You did it! Your files have been converted to XLSX format. Now download them to your device.
You don't need to download and install any software to convert files to .xlsx format. All conversions take place in the cloud.
Your files are completely safe and accessible only to you. All files will be permanently deleted within 2 hours after conversion.
Convert your xlsx files in 2 clicks. And don't pay anything for it! This XLSX converter is free for all users.
So you're in good company! 👍🏻