Keep leading zero when converting to text to use for vlookup formulas

Hi, I am trying to do a vlookup by UPC code where the lookup file of the UPC codes has the info coded the cells to display 12 digits

Example: UPC code in the formula bar shows: 23063601212 but when you look at the cell it has a leading zero in front of the number: 023063601212

The problem is when I convert this cell from a number to text it doesn't put the zero in front of the number and when I do a vlookup to get the cost for this UPC code it doesn't find it.

how do I keep the leading zero in the cell where the numbers don't have 12 digits into a text so I can properly do my vlookups.

I am attaching the spreadsheets so you can see what I mean.

File#1 - Named: UPC Code with lookup - this is the file I am trying to bring in the current cost so I can compare current pricing to my previous pricing.
File#2 - Named: C Master Inventory file 2018 - this is the file I am trying to pull the current cost from but the UPC code is not converting to text and leaving the leading zero in there when it's missing a digit.

I would appreciate anyone's help who can assist me in being able to pull the data from the master file so I can pull in my current cost into the UPC code with vlookup file.

Thank you!

YR

Bo, thank you for the simple resolution. It works!!

Thank you for saving me time and reducing stress, you should be blessed for sharing your knowledge and your willingness to help people

Thank you again,

YR