Early in my career I worked with a consultant named Josh. He made a point of being the first one to show up at the office, and he was usually the last one to leave. He put in as much hard work as anyone.
We all thought Josh was a nice guy, but I don't think he was ever taught how to use Excel's most useful features. Josh was tasked with performing some analysis in Excel that needed to be presented to senior leadership on a weekly basis.
It took him a relatively long time to complete basic tasks in Excel, so his weekly reports were more data regurgitation as compared to true analysis of the underlying numbers.
In the weekly meetings people would frequently cut Josh off when he was trying to talk. During these meetings people, especially the higher ups, seemed to dismiss Josh's ideas relatively quickly without giving them much consideration.
I felt kind of bad for Josh because I could tell he was really trying, and it probably wasn't his fault. It's likely that no one took him under their wing to mentor him and show him the ropes in Excel.