This little bit of code should help you, but you'll have a little bit
of customizing to do before it'll probably work on your computer.
Aside from placing the code into a macro, the only thing you will have
to do is replace the sheet names ("Sheet1", "Sheet 2", etc...) with the
actual name of your sheets. It works best if you double click on the
sheet name, then copy and paste it into this, because sometimes there
is a space that's not visible in the sheet name that will prevent the
code from running. You can put as many sheet names as you like as long
as they are in your workbook, just make sure to put quotes around them
and separate them with commas. Good luck.

Sub SearchReplaceWorkbook()
Sheets(Array("Sheet1", "Sheet2", "Sheet3")).Select
Sheets("Sheet1").Activate
Cells.REplace What:="\=", Replacement:="=", LookAt:=xlPart, _
SearchOrder:=xlByRows, MatchCase:=False, _
SearchFormat:=False, ReplaceFormat:=False
End Sub