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I have a problem regarding to Sum if equal to one of many things

Solved by C. D. in 11 mins

In my spreadsheet I have a list of people. In column A I have got their name, in column B the society they work for, in column C how many times they held a positionX, in column D how many times they held a positionY, in column E how many times they held a positionZ. Not all of them held a position X, Y or Z. They could have held one of them, two of them, all of them or none.
I need to know how many of them held a position (no matter which one, how many times or how many of them), divided by society. Is that possible?

Solved by I. L. in 29 mins

One computer has many more chart options than another computer. Both have the same version of Excel installed.

Solved by O. W. in 30 mins

I am trying to create many to many relationships in my pivet table but I am not able to make one, saying that this many to many relationship is not supported.

Solved by V. H. in 12 mins

I need to create many invoices from one sheet.

Solved by S. C. in 18 mins