I am new to obsidian but would like to share info on txt files and other external links outside of vault. I know that .md is .txt with interpretation of special characters as a way of formatting text, and it is suggested to change the .txt extension to .md or copy the txt file to vault to link in documents or some plugin. I found a simpler solution, which I don’t think is mentioned, which is simply linking *.lnk shortcuts to external original files as to open the file. You can create a separate folder in the vault for external files with *.lnk shortcuts as potential items for external files to select in notes.