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Dear [boss],

As you know, I spend a good part of my day in Excel.

Although I can usually figure things out, I could be more productive with training. I think this might be a good option:

https://exceljet.net/training

The training is self-paced, with short videos I can fit into my schedule easily.

The site is well organized, and they get good feedback .

Would the company cover the cost as part of my skills development?

Please let me know what you think.

Thanks,

[your name]