To get a SPOT bulletin you have to request it; you need to generate a SPOT Request, that will be sent in an email to query@saildocs.com.
Then you receive a response to this email request: this is the spot bulletin.
You can then paste the content of the bulletin in the text-box expecting it, and you should be able to see the bulletin rendered in a graphical way.

To locate the place you want the bulletin for, click on the chart (you can zoom in and out). A click on the chart should update the position in the SPOT request, displayed in red.
Also choose the range and the interval, with the drop-down lists.
Your request is now ready to be used.
You can:

• Copy the red string into your clipboard
• Click the Copy button
• Click the link query@saildocs.com, if you have an email client configured on your system

Important: This email MUST be sent in TEXT format. No fancy HTML formatting or what not.
The email would look like this:

            TO: query@saildocs.com
            SUBJECT: spot
            BODY:
            send spot:47.61644734678011N,2.8180347383022313W|5,3|PRMSL,WIND,RAIN
          

Now send the email, the reponse should be in your inbox within minutes, if not seconds.

The bulletin you got as a response to your email looks like this:
Data extracted from file gfs-20220117-00z.grb dated 2022/01/17 05:13:48 request code: spot:37.77715986825405N,76.00255966186525W|5,3|PRMSL,WIND,RAIN Forecast for 37°47N 076°00W (see notes below) Date Time PRESS WIND DIR RAIN utc hPa kts deg mm/h ----------- ------ ----- --- ---- 01-17 03:00 990.7 36.6 129 14.5 01-17 06:00 991.7 25.7 209 0.0 01-17 09:00 990.0 28.9 218 0.0 01-17 12:00 990.6 31.9 237 0.0 01-17 15:00 993.2 29.3 248 0.0 01-17 18:00 994.1 26.7 256 0.0 01-17 21:00 997.7 28.5 269 0.0 01-18 00:00 1002.6 27.1 277 0.0 01-18 03:00 1005.5 24.4 273 0.0 01-18 06:00 1008.4 23.0 289 0.0 01-18 09:00 1012.1 19.9 287 0.0 01-18 12:00 1015.6 15.7 278 0.0 01-18 15:00 1019.5 15.8 286 0.0 01-18 18:00 1019.4 15.7 301 0.0 01-18 21:00 1020.4 11.7 326 0.0 01-19 00:00 1022.7 3.6 290 0.0 01-19 03:00 1023.1 6.2 178 0.0 01-19 06:00 1022.0 12.5 196 0.0 01-19 09:00 1021.7 15.5 208 0.0 01-19 12:00 1021.7 19.3 204 0.0 01-19 15:00 1021.0 21.2 209 0.0 01-19 18:00 1018.2 18.9 214 0.0 01-19 21:00 1017.0 16.8 212 0.0 01-20 00:00 1017.5 14.9 217 0.0 01-20 03:00 1016.8 16.5 220 0.0 01-20 06:00 1016.1 11.5 230 0.8 01-20 09:00 1016.9 7.8 275 2.7 01-20 12:00 1020.2 27.1 355 1.5 01-20 15:00 1023.7 24.4 353 0.4 01-20 18:00 1023.8 24.7 345 0.0 01-20 21:00 1025.7 23.2 349 0.0 01-21 00:00 1028.7 19.7 009 0.0 01-21 03:00 1030.6 20.1 008 0.0 01-21 06:00 1030.5 21.0 009 0.0 01-21 09:00 1031.3 20.2 009 0.0 01-21 12:00 1032.5 18.1 013 0.0 01-21 15:00 1032.6 16.0 021 0.0 01-21 18:00 1031.4 12.6 024 0.0 01-21 21:00 1030.5 17.9 015 0.2 01-22 00:00 1031.0 19.0 014 0.2 Refer to notice & warnings sent 2021/12/28 11:53:43, for another copy send a (blank) email to: SpotWarning@saildocs.com ===== Thanks for using Saildocs, an Internet document retrieval service for the bandwidth-impaired. By using this service you agree to the Saildocs terms and conditions (send a blank email to: terms@saildocs.com for a copy). Saildocs is a service of Sailmail, a membership-owned email service built by cruising sailors for cruising sailors. Sailmail provides world-wide email via marine-band radio, internet and satellite including support for the Iridium GO! For more information on SailMail see the web page at www.sailmail.com or send a query to the office at sysop@sailmail.com. More information on Saildocs is available by sending an email to info@saildocs.com, this will return the how-to document (about 5K).
Copy the content of the bulletin, from the top, at least to the last line of the tabular data (you can also copy the full content) in your clipboard.
Note: You can use the content above, for tests.
Now, paste the copied bulletin in the text-box that says Paste SPOT bulletin here, and tab out., and tab out of the text-box (or just click anywhere else).
The rest should be straightforward.