Based on our record, File-Extensions.org seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
File-extensions.org lists following files for .3 extension:. Source: about 1 year ago
Culture Codes - Company culture decks aggregated all in one place
FileProInfo - It's All About Files, Software, Online Tools - 100% Free
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
FileInfo.com - FileInfo is the central file extensions registry and contains a database of over 10,000 file types.
Culture Your Culture - Finally, the much needed step-by-step "how to" for culture
FILExt - Open, view and convert files online