Do you know the function of Excel?

In the use of the personal computer, there is a spreadsheet of Excel. Only if this Excel is used, it is easy because it is good. only start Excel
However, has been the function of software of Excel well informed?For instance, are functions etc. such as functions and auto filters well informed?There is terribly a difference whether to know whether to know this in the working efficiency.
The function of Excel can finish being not terribly remembered in hugeness. However, it thinks a really necessary function only to be not cervine among the huge amount. Well though it is thought that it floats and [tsuka] depends on [naiyou] ･･･ I think enough to be able to master Excel as long as the function of the function is tightly remembered.
However, I do not think that what I may even use might be understood. How because the Excel function according to operation frequency list is published when various sites are seen if referring?
Moreover, the function of Excel is not so significant only by knowing. Let’s master it if it knows. I think that I can use it because I remember at once because it is easy for instance terrible ..[desuga] “If function”.. syntax.
However, I think that it is good to acquire the usage by using it many times because I think that the thing quite acquired to ours is difficult only by remembering the syntax.
I think that referring is also good because there is something in which the usage example like the usage etc. of the Excel function is published when various sites are retrieved.