Microsoft Office is one of the most valuable tools and skill-sets that a Manager or Engineer can have. There are cheaper alternatives, but most industries use Microsoft. Even if you use one of the alternatives, I highly recommend being familiar with Office. Also, adding Visual Basic for Applications (VBA) to your toolbox only adds to your value.
There are many packages of Office. I recommend being very familiar with:
Microsoft Offices skills are an essential element in today’s business world.