If they are just text files, then there are many resoures you can leverage to accomplish this.
Parsing Log files using windows PowerShell
Why not use the power of select-string to find
PowerShell: Find Strings In Specific Files And Output To A Log File
This is a very easy and short script which does the following:Loop recursively through the root directory of the script (from where it is run).Search for all *.txt filesGet the contents of those filesMatch the contents of those *.txt files each entry in a control file (control_fi
Use an Easy PowerShell Command to Search Files for Information
Summary: Learn how to use a Windows PowerShell command to search easily for information in a collection of files.