Online ET to XLSX converter Convert spreadsheet files 50+ most popular formats supported Maximum file size 5 MB or sign up Select file or drag & drop it here Select a format file to convert Wrong captcha Captcha time is up. Try again Cancel Convert File is converting. Please wait... Generate texts with ChatGPT integrated in ONLYOFFICE Docs Get free ready-to-fill out online forms Work on documents on the go with free mobile apps Cancel Your file is converted: Convert new Download Need to make some edits? Create your free online office to edit and share your documents! Login Rate your experience 4 / 5 - 10 vote(s) Learn more ET Convert ET files into XSLX spreadsheets online. Simply drag and drop or upload your ET file and get the converted spreadsheet in seconds. Don't worry about the privacy of your data — all files you upload are reliably encrypted. Start editing your converted XLSX sheets right in your browser. Create a free account to edit, share and collaborate on your sheets and other office files with others in real time. Analyze data using pivot tables and conditional formatting. Automate your tasks with macros. 50+ supported formats Spreadsheets Text documents Presentations Powerful conversion API ONLYOFFICE provides one API to convert all kinds of Office documents: texts, sheets, slides, forms, PDFs, eBooks and more within your app. Check our API documentation. We care about your data All documents you upload are encrypted to make sure they are completely safe online. We do not track or request any of your personal information to convert the files. Your documents are not stored on the server after conversion is completed. We guarantee transparency of file processing by providing open source code of our software. Need to make some edits? Create, edit, and collaborate on your text documents, spreadsheets, presentations and PDFs online with ONLYOFFICE DocSpace Start now Download free desktop and mobile editors For Windows For Linux For Mac OS Leave the page and convert new file? Yes No Leave the page and convert new file? Yes No Are you sure you want to delete this file? Cancel Delete Error The uploaded file likely exceeded the maximum file size 5 Mb Close Submit an issue Error The uploaded file has zero size and therefore cannot be converted. Close Submit an issue Error The file format is not supported. supported files Close Submit an issue Error Close Submit an issue