Using LibreOffice on an older Mac

I have not used Libre Office before but my wife’s publisher has recommended it for her. She does all her work on Apple products … an iPhone 8 and a 2009 vintage desk Mac. When I look up Libre Office on the App store from that Mac desktop I see Libre Office Vanilla available but upon closer examination that indicates it needs OS 10.12 while our desktop only runs 10.11.6 (El Capitan). Any suggestions?

What kind of 2009-Mac is it? Does it run a PowerPC or an Intel CPU?

Thanks for replies.

The Mac Desktop is described as a

Model : iMac ( 27 inch late 2009)

Model Identifier: iMac10,1

Processor:3.06 GHz Intel Core 2 Duo

Memory : 4 GB 1067 MHz DDR3

L2 Cache : 3 MB

Graphics : ATI Radeon HD 4670 256 MB

It has seen little use.

System Requirements

Download LibreOffice

Can this help?

Also:

https://wiki.documentfoundation.org/Documentation/System_Requirements

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