Hi all, does anyone know, if you have a value in A1, if you can engineer
formulas that look something like (I need two separate ones):

IF(The value in A1 is in another specific workbook on a specific sheet),Show
this

IF(The value in A1 is in multiple worksheets),Show only a specific worksheet

If this has to do with macros, please explain as much as possible, I'm macro
illiterate, so a formula would be much better.

Any help would be great! Thanks!
Jezzica85