How to check if your Mac's software is 32- or 64-bit

How to determine if you have a 32-bit or 64-bit CPU? - CheckMark Knowledge Base

Is My Mac 64 Bit or 32? Quick Guide To Find Out - The Mac Observer

How to know if I am running on a 32-bit or 64-bit Mac OS - Quora

Booting into 64-bit mode (Snow Leopard)

About Office: What version of Office am I using? - Microsoft Support

How to check if your Mac's software is 32- or 64-bit

How to determine if you have a 32-bit or 64-bit CPU? - CheckMark Knowledge Base

Determining If Your Computer is 32-Bit or 64-Bit

MAC OS AND 32 BIT Vs 64 BIT What To Do?? — Technology, 47% OFF