It took some rooting around, but here it is - provided your version of Excel (.xlsx) has these features.
(If your version is old (.xls) use File/Page Setup, Scale, and then create a PDF manually with Adobe Acrobat.)
Before anything else, Do a Save As to create a copy of your Excel files and work on that, to preserve the original.
There only 3 Steps, the first 2 in Excel, the 3rd in Adobe:
2)Save As - PDF
3)Export - JPG
First, in Excel, in the Menu Bar, select Page Layout, and then Scale to Fit.
Change the Height to a number big enough to capture your spreadsheet. In my case '3 pages' does it. (CLUE: When I previewed or printed, I saw 3 pages.)
Next, do a " Save As" to an Adobe PDF, and you will get a single long page document.
Last, open the file in Acrobat, and click on EXPORT. In my case I chose to export a JPEG -
Which, when Inserted into a BPL post [the 'Insert Image at Cursor' button is above and right of the Comments box], looks like this -
Neat and Clean.
As long as you want.
And you can actually read it.
The Gear List is preserved in the thread, and any future changes to your Gear List won't have an impact.