Dear Sir

I install openoffice 4.0 version in ubuntu 18.4 in my pc but openoffice is not working in ubuntu 18.4
please help me thanks

I downloaded openoffice from net then install through terminal but when i opened openoffice it is not working

You mean Ubuntu 18.04?

Where did you obtain Open Office and how did you install it?

In what way is it not working?

P.S. Just to let you know, LQ members are both men and women, but in any case there's no need to call anyone "Sir" or "Madam". We are just all Linux users like you.

Ubuntu comes with LiberOffice, a fork of OpenOffice that works quite nicely. Why not just use that?

Just a wee note that the package is called LibreOffice, not LiberOffice. I agree with frankbell - unless you have a very specific reason for wanting to use OpenOffice, LibreOffice is a very good office suite.

I put Open Office on mine because it's what I was using in Windows a few weeks ago before I switched. Tried out Libre Office, but it was different, so since OO is an option, I installed it.

Did you install it with Synaptic Package Manager, or in shell?
The package manager would have included any dependencies. From shell, there may be some missing.

Spellink is not my strong sute.

To OP: LibreOffice works just like OpenOffice, only better. Any differences you have noticed are likely the results of improvements to LO has since the fork.

I was a long-time user of OOo until the LO fork (which happened when OOo fell into the Oracle pit when Oracle acquired the assets of Sun Microsystems after Sun went belly-up; Oracle could not figure out how to monetize OOo and OOo eventually ended up with, I think, Apache).

I use LO regularly and attest to that statement.

Heck, I've been using Word Processors since Display Write v. 3. Processing words has been my livelihood.

Aside:

All word processors do pretty much the same stuff. They just hide it in different places in their menus.

Correct. It's now Apache Open Office.