Telugu is an official language that's being spoken in the Indian Subcontinent. There are more than 85 million people speaking it. The written form looks to a westerner as indecipherable as any other eastern language. It obviously requires a means of translation. English to Telugu Dictionary is supposedly an adequate tool.
Signs of the written Telugu language dates back to 400 BC. That's way before the invention of computer file extensions. That is probably why the "English to Telugu Dictionary" archive contains generic file types (among php ones). I did spot an install file but adding ".exe" or ".msi" to its name was pointless. So I'm sad to say that you must find another solution for English-Telugu translations, as this app is far from accessible.
incomplete file names
Don't bother with this. I'm sure you can find other resources online.