I made this for a faction member but thought it might be useful for others.
URL https://greasyfork.org/en/scripts/555054-your-items-csv-exporter
Tested in both TornPDA and TamperMonkey
It adds 2 buttons to the top of your Items page, the first one is used to manually get Market Values of items using your public API key (or key saved in TornPDA). The second one is used to then export the list of displayed items in CSV format, and copies it to the clipboard to facilitate pasting into other applications etc.
It works with the items displayed in the active Items tab and only with the items that have been loaded (i.e. if you are in All Items, you'll want to scroll down and load the entire list before exporting).
Example of the CSV output:
Item,Category,Qty,Market Value,Total
Blank DVDs,Material,27,541,14607
HPCPU,Tool,28,18230,510440
Ipecac Syrup,Medical,31,33376,1034656
Kabuki Mask,Clothing,1,12271,12271
Kitchen Knife,Melee,1,915,915
Large
Suitcase,Enhancer,1,10493244,10493244
Leather Gloves,Defensive,2,424,848
Lipstick,Other,2,190,380
Lollipop,Candy,4,644,2576
MP3
Player,Special,3,658,1974
Old Wallet,Supply Pack,8,4619,36952
Pearl Necklace,Jewelry,1,382,382
Peony,Flower,19,54439,1034341
Red
Fox Plushie,Plushie,19,27031,513589