It may be a specific version or package name for the Instagram application , potentially for specific operating systems like Tizen (which uses .tpk files).
It could be a reference to a specific data download or message archive file (typically exported as a .zip or .html file) generated when a user requests their information from Instagram. Download Instagram 7049003 tpk
Once you clarify your goal, I can provide more specific help. It may be a specific version or package