Adding single Quotes to each cell

Hi,

I have spreadsheets and each spreadsheet consists of atleast 5000 cells including numbers and charaters. I need to add single quotes for each cell. For example if A1 is 10000 then '10000' and A2 is demonstration then 'demostration'.

Not sure how to automate this in each spreadsheet. If someone who is knowledgeable please help.


Regards,
Vijay