How to export and save the coefficient of fixed effects in proc glm procedure?

[lyss]

I want to use the coefficient of the year fixed effects generated by a glm procedure  as independent variables in another regression, but I cannot find a way to export it as a data file.

[PaigeMiller]

ods output parameterestimates=betas;
proc glm data= ...;

[Reeza]

Here's some instructions and explanations on how to capture output that is shown.
https://blogs.sas.com/content/sastraining/2017/03/31/capturing-output-from-any-procedure-with-an-ods...