I believe there is no real difference, they are actually two letters from greek alphabet, maybe just different identification.
BTW I made my own POI files with your excel wsheet and I will try them as soon as possible. If everything is ok I will post a step-by-step guide to explain how to easily (I hope) get lat,long and name to put into wsheet.

That I can do
Lat,Long:
1. Copy lat/long from Google Earth
2. Paste into worksheet

Name:
1. Write name in worksheet

Done!
:-)

My friend. I didn't mean this. I mean take data (for more than 12.000 POIs) from .asc file and put them in the correct value into worskheet...

Just as easy:

1. Copy latitude column
2. Paste into POI Maker latitude column

Repeat for Longitude and for Name
Add any other desired data

Very easy.

hmm. can´t get it working (2010 Europe HIGH map). i replaced original 0081.idx and 0082.url with my POI_Maker files (81 and 82 are police department tables, no changes in eng.lsc needed). i get empty menu under police departments. excel file contains lat, long and name fields, rest are "No".

what is this excel sheet for? i mean, you can download several speedcam lists in the web, why do them yourself?

Because POIs are more than just speed cameras

AND the speed camera lists on the web are very simple with very little data (really they are quite incomplete)

With POI Maker, you can
- add all POI data to the POI. Eg street name, house number, speed limit data for speed cameras, direction of camera (for speed cameras), and whatever other data you want
- add ANY POI data, eg McDonalds Restaurants, Family and Friends, Company Locations, etc etc etc

If you enter no data in the Sheet, then the menu will be empty!
Remember, the search results show the data in the URL file. If you only have NAME and no other data, there will be nothing to show.

As for the IDX file, of course, you must check that the IDX field names you use are the same field names that are used in the Search Results HTM file.

I see that you have called the name field POLICE, so you must edit your SF_xxxx.HTM file to reflect the changed name.

Anyway, send me by email the original IDX and URL files, and your Excel file
I will compare for you. Maybe there is a small bug...

PS: I am also working on POI_Extractor, so that you can extract the data from any existing IDX and URL file, then you can insert the data into the Excel sheet and edit it, and then re-save new IDX and URL files.

i´ve just sent you the files. i didn´t edit the SF_xxx.HTM file (didn´t know that i had to). i´ll give it another try. one thing i saw is that if no data under ENTP1 formulas need to be deleted or it will include the 166666666 values in .url file.

Well, your index IDX file has these fields in it

ID:I:3|POS:P:8|POLICE:S:16

As you said you did not edit the SF_xxxx.HTM, the SF file will still be looking for the original name (like NAME, SELNAME, etc)

You changed the name to POLICE and that is why the data cannot be displayed.

Please read and follow the instructions:
"Enter the title of the NAME field as per your SF_XXXX.HTM file. The NAME field varies: SELNAME, NAME_sco, or just NAME are examples of what you might see."