Secure office and productivity apps
格努内里克
Gnumeric係一個開源電子表格程序。
卡利格拉
Calligra Suite is an office and graphic art suite by KDE. It is available for desktop PCs, tablet computers, and smartphones. It contains applications for word processing, spreadsheets, presentation, vector graphics, and editing databases.
自由辦公室
LibreOffice係一款功能強大且免費嘅辦公套件，被全球数百万人使用。