LibreOffice - Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.
eSignLive - E-SignLive that is also called as e-SignLive by Silanis that will make you able to enjoy the e-signature and electronic signature from any part of the word.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
DocuSign - Try DocuSign's interactive signing demo now! Send yourself an electronic document to digitally sign using our e-signature service.
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
HelloSign - eSignatures Simplified. The Most Powerful Platform for Your Business Agreements.