How can i filter data type in a cell?

[blauerhund]

I need that an especific cell, only accept numbers or date. Thanks

 

[Tim879]

look up data validation in Excel's help.

it's under Data->Validation

 

[muddan madhu]

suppose u want A1 needs to be accepts only number or date

then select A1, go to data | validation | setting tab | allow : custom
| formula : =isnumber(A1) | ok