Hi, I use sheet to make many simple operations like multiply.

I use the same sheet since some months ago but on last week sudenly if I mulitply any value with decimals like 71.1, the result is #VALUE!

Example: If the operation is ok

Cell A = 5 Cell B = 5  Cell C =Cell_A*Cell_B=25

Example: If the operation is not good

Cell A = 5 Cell B = 5.1  Cell C =Cell_A*Cell_B= #VALUE!

Cell_A = Number

Cell_B = Number

Another weird behaivor is:

If I insert the next number to one cell  "5.1" then the cell type change from number to "personalizado" in the spanish edition, maybe something like "personalized" in english version.

Then if I type the next number in the same cell "71.1" the cell type changes from "personalizado" to "general".

Any idea?