How to open access to robots.txt, while blocking all other .txt files through FilesMatch?

Question

htaccess

Good afternoon. Please tell me how to open access to robots.txt in such a bundle -

<FilesMatch ".(zip|7z|rar|txt|sql)$">
 Order Allow,Deny
 Deny from all
</FilesMatch>

Answer 1

<FilesMatch ".(zip|7z|rar|txt|sql)$(?<!^robots\.txt)">
 Order Allow,Deny
 Deny from all
</FilesMatch>