OpenOffice : Delete an apostrophe before numbers in cells

I've been having an issue with some data and processing it. On checking I notice that some cells have an apostrophe before the data .

I found how to Find and Replace then in this post https://forum.openoffice.org/en/forum/viewtopic.php?f=9&t=49046

1. Highlight all of the cells and use Format -> Cells to change the cell format to an appropriate number format.
2. With all of the cells still selected, go to the menu Edit -> Find & Replace
3. In the Search For box enter .* (period asterisk)
4. In the Replace with box enter &
5. Select More Options and check Current Selection Only and Regular Expressions
6. Click Replace All