you may have to accept this macro, without seeing its code.
I presume you have misstyped the file type, and it
should be sas7bcat. If not, rename the catalog so
that that is its filetype.
Store the catalog in a folder for which you have assigned
a libref, or just copy and paste it into the TEMP folder (in
the win explorer address bar type %temp%)
Then open the catalog temp.sasmacr
(command ==> cat temp.sasmacr )
If it contains a source entry, you may have found the
source of your macro. I expect it contains only the
pre-compiled macro labtest.macro.
If this is the situation, copy labtest.macro to work.sasmacr.
and/or provide some more feedback