Microsoft
Bill Gates' company, simply, makes software for computers. Software is, for example, programs like Word, Excel and Powerpoint which most people have on their computers. One thing to note is that Bill Gates' company does not make computers, only software, which helps the computer run.
Autodesk makes many software that can do that.
Yes, Microsoft Excel is one example of computer software. Software is anything which enables or helps the computer to run which is just code, with no physical substance. Software is stored on and processed by hardware. Hardware is any physical device which makes up a computer, like a hard drive or cooling fan.
Bill Gates makes software that operate within computers. The software is known as Windows and includes Word, Excel, PowerPoint, and Access.
An alternative to Microsoft Excel is White Birch Software. You can visit their website at http://whitebirchsoftware.com/.
Microsoft
Adobe
Yes. Microsoft Excel is an example of computer software.
No. Excel is an example of applications software.
The company that makes the software known as "Jinitiator" is Oracle Corporation. The software Jinitiatir is a JVM which stands for Java virtual machine.
Propellerheads
The company that makes it are called Opera Software.