In the distant past I have migrated thousands of files to Salesforce as 'Attachments'.
I am currently on a project where I need to migrate thousands of files to Salesforce as 'Files' - this will be an unfamiliar task for me. As I understand it the process is similar (ie. upload via Apex Data Loader using a suitably populated csv). However my searching for the correct procedure has produced no clear instructions (not clear to me anyway).
Nos. 2 and 3 appear very similar (and if I was more SFDC savvy perhaps they would turn out to be the same), but the first one (Trailblazer) is different in that it advises the creation of two csv files and what appears to be a different process.
Am I on the right track here? Maybe someone who has done this before can point me to 'best practice' instructions?