Try this

Tools|Autocorrect option and type 11 in the Replace box

Delete the enrtry for replace 11 with 12

Mike

"XD-San Jose" wrote:

If I type 11 in one cell, 11 will show up in the cell. However, after I hit
the return, 11 becomes 12 autimatically.

All the number keys are working. If I type 1 or 111, all are fine except 11.

This is also true in Word.

Is this related to office or is this to the computer.