Hitomi opens CSV or data/logs in non-standard formats instantly and offers intuitive and powerful filtering and analysis options.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Windows
- Linux

Apache OpenOffice has been discontinued. Similar apps include LibreOffice, which is free and open source. Other options are ONLYOFFICE, Google Docs, Microsoft 365 Copilot and CryptPad. You're spoiled for choice with Spreadsheet Apps like Apache OpenOffice: we list more than 50 alternatives for Windows, the web, Linux, Mac and Android.
Hitomi opens CSV or data/logs in non-standard formats instantly and offers intuitive and powerful filtering and analysis options.

TreeTime is an information organizer that stores text, numbers, and other data in linked trees. Mathematical operations like sums, ratios, and differences are calculated and updated on the fly. It exports to PNG, SVG, HTML, CSV, and plain text, and includes a configurable web interface.




It's compatible with Microsoft Office (Word, Excel, PowerPoint), Google Docs, Google Sheets, Google Slide & OpenOffice format.



Spreadsheet formulas can do almost anything and save you a lot of time, but only few of us are using their full potential. Useful Formulas makes it super easy to benefit from the power of formulas - just copy and paste.




A good writing program doesn´t have to be expensive: Create and edit your documents with "Write-a-Document". You can open RTF and Word documents, among others. Print your documents or export them as PDF. Includes templates and wizards for many purposes.




Fully featured Word Processor, Spreadsheet, Diagram Creator, Calendar and PDF viewer - all in one simple to use application, perfect for those with only basic needs without the cost of buying Microsoft Office.




“Simplest way to organize & share parts of your growing spreadsheet”
Bring your data lists into CollateBox and get ready spreadsheet-like templates with ready data validation . Generate online forms instantly, track data changes & stay updated with email/mobile SMS trigg.
Aspose.Total Cloud is a collection of RESTful APIs specifically designed for document generation, conversion & automation in the cloud. It supports Word, Excel, PDF, PowerPoint, Outlook, Visio & more than 100 other file formats in any type of apps.





Free, open-source AI Office suite: Docs, Sheets, Slides, PDF, Markdown and HTML editors with a built-in AI agent, plus a genoffice CLI and agent skill so Claude Code, Codex and Cursor can create and edit real .docx/.xlsx/.pptx files locally. Bring your own key. macOS, Windows & Linux.




