How would you write a loop routine for a C# console application using Visual Studio 2005 to assign the value in positioins 87 to 95 to a string variable named strAccounts?

I am developing a C# console application using Visual Studio 2005. How would you write a loop routine to read the records in a text file 1 at a time and assign the value of positions
87 to 95 to a string variable titled strAccount while there are records in the text file? The text file resides at C:\files\test.txt.

While (! EOF)
{    
     strAccount = ???
     peformRoutineXXX
}