How to open a file larger than 20 MB in Intellij?

Question

If I try to open a text file larger than 20MB, I get the message: File <path> is too large (21.97MB). Where could I relax this restriction?

Answer 1

Found by inspecting intellij source code: you have to edit the property idea.max.intellisense.filesize in idea.properties located in idea_home/bin.

The maximum file size to load = max(20MB, <value of idea.max.intellisense.filesize>)