[snadal]

Not the same thing.

- Libreoffice can edit Word and Excel files.

- There are several tools to read a PST file. Anyway… pst files are not commonly being shared with other people so the need to accessing it is uncommon unless you already use outlook.

- Autocad and Quickbooks are far less used (less people) than PDF.

I also wonder why there are no more tools to edit PDF files. Maybe licensing issues?

Edit: formatting

[tiahura]

Not the same thing.

- Libreoffice can edit Word and Excel files.

You are correct. Just because Libreoffice can mangle a docx file doesn't make them truly comparable.

emacs can edit a .sqlite file, but they aren't comparable.

The issue is the insanely massive investment needed to build and sustain a project with millions of lines of code for something that isn't particularly sexy.