Excel is a great tool and there are loads of fantastic resources if you're looking to learn more about how to use it. Here are some I can recommend:
Beginners Tutorials on YouTube
If you need help with converting complex Excel, Access or VBA systems into a sustainable cloud-based software solution built exactly to your specifications (that won't collapse, require specialised knowledge to use or stop working unexpectedly) check out our friends at Devhouse - Perth's Custom Software Specialists.