MS Excel is an effective way of accomplishing tasks. Why most of the job requirements forget to mention the necessity of Excel in their requirements?

Companies tend to assume that excel assistance can be provided by support staff and the managers are end users of a data analyzed the way the require.

Infact this is happened to be the practice and excel is so ifficient that once formulas have been in place company can use it easily without requiring a widespread knowlege of excel.

It's too basic a skill to mention.  It's like being able to tell the time or use a photocopier.

Because, there is a lack of job description before designing the contents of job requirements. Majority of the candidates are selected on the basis of their grades. Employers should analyze their job requirements that candidates wouldn't take extra time for training after selection. Through this way, company could save the time and cost that could be spent over training.