Where are saved pages stored?
Where to find it when it was downloaded
If you have been able to &quot;download&quot; the file, the most likely location to find it is either /sdcard/download or /sdcard/downloads.
It wasn't downloaded, but &quot;saved for offline reading&quot;
But as it turns out, the stock browser didn't give you that option, and you had to &quot;save for offline reading&quot; -- which is something different. In this case the file probably is stored on internal storage (below /data/data/com.android.browser). Without root you've got not many chances to access it there. So you could either try with a different browser -- or simply copy-paste the text file into some note-taking app / editor (e.g. Jota Text Editor or AmbleLink Notepad Basic Ed.).
Alternative download options
If you have to do this more often, or formatting gets lost on copy-paste, you're probably much better of with some &quot;downloader tools&quot;. I just know about Tasker, which offers HTTP_GET actions. Depending on your ROM, the shell might provide wget (stock ROM on my Milestone 2 had this), so all you need in that case is a terminal app (e.g. Android Terminal Emulator), and there simply execute
# change to the directory where you want to store the downloaded file in
cd /sdcard/download
# get the file
wget http://www.example.com/textfile.txt

Adjust that to your needs, of course :)
Special downloader apps
Other alternatives would include special &quot;Downloader Apps&quot;, like e.g. Download All Files or Easy Downloader, which you might want to give a try.