Update to version 2.0.1
Bonjour Trebly ! For the syntax, it follows Perl rules, the best language for regex! Based on what you described, XL-FileTools should do exactly what you want. You can use Preview to see the result before doing it for real and you can also use a sample if you want to be sure. For the syntax, EOS70D1-SD01A-$1.$2 as the replacement value should do the job and you don't need to check Eval option, as follow :
Update to version 2.0
initial commit
First commit
Update to version 5.1.1
Update to version 3.9.1
Update to version 1.3.6