300 plus columns and entries start with a space. What is the fastest way to clear the space?

I'm working on a spreadsheet about wine varietals and their various names. I used Text-to-Column to remove the commas and separate each name but now I have a space at the start of every cell from Column C (named column 1) onward. I can't use Delimited because the names and I don't want to go through all 300+ columns one-by-one.

What is the most efficient way to do this? I tried recording a macro but it didn't work/I didn't do it right.

Thank you for your help.