Filetype: is also a favorite of mine. One thing to note when using filetype in bing by specifying xls it also catches other file extensions (xlsx) while google

Filetype: is also a favorite of mine. One thing to note when using filetype in bing by specifying xls it also catches other file extensions (xlsx) while google in my experience only would find xls. Yes I use bing sometimes and especially when troubleshooting Linux error logs I find it parses a copy paste better. Just my experience. Important to note I do not use profiles.