GuildBankClassic allows you to share your bank and inventory info to guild members or friends using Google Sheets.
Quick HowTo:
1. Download GuildBankClassic AddOn and put it to your World of Warcraft's Interface\AddOns folder
2. Make a copy of this spreadsheet to your Google Drive (Link)
3. Enter the game and locate a Banker NPC
4. Click GBC button
5. Click Ctrl+C to copy an output data
6. Paste all the data to your newly copied GBC Inputs sheet
7. See the magic!
8. Don't forget to setup Edit permissions to your spreadsheet
9. To see script-generated Notes on the Overview tab please check the BasedWeasel's comment at https://www.curseforge.com/wow/addons/guildbankclassic?comment=11 (Thank you!)
10. You are ready to go! Now you can share your GuildBankClassic
You can put your share link to in-game guild's information tab or to guild's Discord chat so that any member could easily access it
Google FAQ: Make a copy of a file