Both files are easily viewable from within Excel. For example, from within Excel 2016, to be able to read the
http://bitcointalk.org/trust.txt.xz file (once uncompressed), simply open it from within:
File-> open (search for file within directory) -> Text Import Wizard (delimited by Tab, with no header). The result is something like this:
theymos->HostFat
theymos->dooglus
theymos->Raize
theymos->Meni Rosenfeld
theymos->Maged
theymos->Raoul Duke
theymos->gmaxwell
theymos->OgNasty
theymos-/>CanaryInTheMine
theymos->zvs
<…>
That is easily readable, and searchable using <Ctrl F>. The only drawback in relation to @Iasenko’s proposal is that it will be a snapshot as of last Saturday morning.
Alternatively, from within a Google spreadsheet you can perform an import of each file, and get something like this is under a minute:
https://docs.google.com/spreadsheets/d/1R_wmxUrkGeBdiS9xv-UHFSJWghqyYpssJYf24t7177Y/edit?usp=sharing