It is common to face a situation where you don’t have Microsoft Excel installed on your computer and you want to open an XLSX/XLS file to view its contents. There are a number of free apps available online that let you open XLSX files online in a browser without installing any software. You can open an XLSX file online using:
- GroupDocs.Viewer - A powerful and free online viewer that lets you open XLSX and other popular file formats online free of cost. Spreadsheet data is displayed as converted images.
- Google Sheets Online - Google Sheets lets you upload your Excel files and open it in your browser for editing as well as manipulation. You can also share your files with other users after you upload it to Google Drive.