So, now you are learning one of the many reasons not to do as you did? I.e., don't create those reams of numbered variables? Bad programming forms just make things worse down the line.
You will be far happier if you spend the time once to combine them all into one simple array. After all, what do you think an array is, but just many rows or columns, each of which might be perceived as a vector? Simply indexed, trivially used and accessed, stored, etc. Even if the individual vectors were of varying lengths, this is why you use cell arrays.
So my recommendation is to write some code that reads it into a function workspace as a struct. Now, you will need to do the work to combine them into one array. But you need only write that code once. After all, you (or somebody) created them. Then save it back out.
Or, you can continue to work with this as it is. In that case, enjoy your ride into programming hell. The descent can be bumpy, and it gets a little warm at times.
