diff --git a/templates/walletform.html b/templates/walletform.html
index aff70fe..1f5c77e 100644
--- a/templates/walletform.html
+++ b/templates/walletform.html
@@ -66,6 +66,10 @@ var {font-family: monospace;
 <div align="left"><p>Please do NOT invent your own filenaming scheme. We have a 20-year old scheme for naming scanned files, <br><br>
 Name the scanned pages <var>"notes-cavepassagename.jpg"</var> etc., or <var>notes-1.jpg</var> if you like, but self-describing filenames are better. This is important as a script detects whether these files exist (with names beginning <var>"notes..", "plan.." and "elev.."</var>) and if you name them something else it will hassle you unnecessarily. (Or you can use this format <var>cavepassagename5-notes.jpg</var> if you like.) See how this works in the Handbook: <a href="/handbook/survey/newwallet.html">Creating a Wallet</a>   
 <p>The '<var>plan..</var>' and '<var>elev..</var>' scans are <em>for fully drawn-up Tunnel or Therion plans or elevations</em>. If you have hand-sketches, then these are '<var>notes..</var>' as are the raw survex survey data numbers.</div></details> 
+
+<details style="text-align: left"><summary>Troggle needs ALL the digital data files. </summary>
+<div align="left"><p>We need the raw data from Topodroid or whatever. All the device software-specific files (in a zip if your like) 
+and <em>also</em> the exported files in standard formats: svx, svg etc. See why in the Handbook: <a href="/handbook/survey/newwallet.html">Creating a Wallet</a>   </div></details> 
 </div>
 <div style = "max-width:29%; margin-left:20%; text-align: left" >
     {% if filesaved %}