Viewing eml files on mobile devices

I have a huge archive of emails in iCloud Mail. I access this account from macOS using Apple’s Mail App. In order to backup and make this email archive reliably searchable, I am planning to capture the individual emails as eml files in EagleFiler. This solves the problem for macOS. How can I search through these eml files on mobile devices?

Thanks!

There’s another thread about this here.