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.
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ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
Impressive - latist virsion of impressive 2018 free and open source License GNU General Public License version...
WPS Office - Would you need Office Word, Excel or PowerPoint for Home, business or School? WPS.com would give you right version for you.
PDF Presenter Console - The Pdf Presenter Console is a multi-monitor presentation tool, which is capable of using arbitrary...