Hello Everybody,
First of all, thank you so much for using your time in assisting me with this matter and reading this inquiry. It is greatly appreciated!
I am currently making an order form in Excel, where I am pulling my product data (material description) from a sheet I have named "Products":

After this, I made a new sheet with an Order form, which looks like this:

Now, I want to make a drop-down list of all the materials in "Product". However, I would also like for this list to automatically update itself whenever I add a new entry to the "Products" list of materials (current range is E2:E97, but this can easily go
above E100 once I started editing). In order to create this automatic update feature I saw this thread online: https://www.datanumen.com/blogs/2-methods-auto-refresh-drop-list-excel-worksheet/
Now, please do note that I am not an extremely experienced Excel user and thus I am not 100% sure if I did the formula from the link correctly, but I edited the formula that was provided in method 1 to apply to my own sheet, where I named it:
=OFFSET(‘Source Range’!$E$2,0,0,COUNTA(‘Source Range’!$E:$E)-1)
However, when I try to enter this formula I get the following message:

I tried putting in '= instead in my formula, so it goes like this: '=OFFSET(‘Source Range’!$E$2,0,0,COUNTA(‘Source Range’!$E:$E)-1)
This removes the error, but makes the formula invalid, so the "Product" drop-down list just looks like this:

I am very confused as to how I can solve this problem. If anybody can give me nice inputs/solutions, I would greatly appreciate it!
If you need further information, screenshots, or anything else, please do not hesitate to let me know either :)
Thank you for your time.
Best regards,
David