If it’s in Excel you can merge the 4 files and then use Microsoft OneDrive to have it available to you anywhere you have an internet connection. Would require office 365 to be installed on your phone/tablet though to access OneDrive when you were remote.

Then you could do a simple “control f” to find what you were looking for and pop right to that location.

That said I think Office 365 with a 5 install/user license is $99 a year.

I’m sure there’s probably specific auto software but I’ve alway just used Excel because I have office on my pc and phone...