//UTF8 encoding

After converting text cells to number (using: "LeftClick/Format cells...")
at the begining of number there is hidden ' (apostroph) char.
This char can be deleted only by editing every cell. Is it possible to 
remove all ' characters automatically?

SOLUTION:
1.  Select cells
2.  LeftClick/format cells...
3.  change format to number
4.  menu: Edit/Find and replace
5.  Set search string to: .*
6.  Set replacement to: &
7.  click: More options
8.  check: Current selection only
9.  check: Regular expressions
10. click: Replace all