This can be done using placeholders that show example data in the correct format. (ignorethecode.net)
More Data Analyst cover letter examples Data Analyst cover letter 1 Data Analyst cover letter 2 Data Analyst cover letter 3 (dayjob.com)
Provide example data from experiments using PD - L1 positive tumors and a cancer cell - line engraftment into a humanized mouse model that was used to test anti-PD1 immune therapy (sciencemag.org)