Qiqqa is by far the strongest solution for research and managing pdf's. Zotero, named as a comparison is weak as it does not allow pdf;s to be loaded into its interface - you need to use a pdf reader, which defeats its whole purpose. With Qiqqa documents in a library can be searched together. It has excellent maps of your libraries. It is not prefect, having a few glitches, but still is the only one of its kind.
Based on our record, Gnumeric seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Gnumeric is actually a good excel. The stats routines are shared with R so if ever someone demonstrates a bug, it is fixed! Free, fast, accurate. Pick any three! http://gnumeric.org. - Source: Hacker News / 8 months ago
I can recommend http://gnumeric.org/. It is really fast, accurate and relative light weight compared to libreoffice calc. Source: about 1 year ago
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.