I got three different file:
Part of File 1

Code:

ARTPHDFGAA
.
.

Part of File 2

Code:

ARTGHHYESA
.
.

Part of File 3

Code:

ARTPOLYWEA
.
.

Does anybody got idea to find out the answer below and generate the result into difference file:

1) Share data content among file 1, file 2 and file 3
Desired result file content

Code:

ART      A
.
.

2) Share data content among file 1 and file 2
Desired result file content

Code:

ART  H   A
.
.

3) Share data content among file 1 and file 3
Desired result file content

Code:

ARTP     A
.
.

4) Share data content among file 2 and file 3
Desired result file content

Code:

ART   Y  A
.
.

5) Data content only in file 1, but not in file 2 and file 3
Desired result file content

Code:

     DFGA
.
.

6) Data content only in file 2, but not in file 1 and file 3
Desired result file content

Code:

    G H ES
.
.

7) Data content only in file 3, but not in file 1 and file 2
Desired result file content

Code:

    OL WE
.
.

"." refer to long list (eg. ASDASDASFJKJETET.....) of data file content.
All the file 1, file 2 and file 3 are exactly same file size, 110MB/110 000 million letter in each file.
The difference of the above three file, just some of their contents.
My purpose just plan to compare the three file data content and find out the common data content in all three files, unique content in each file, etc.

Thanks a lot for any advice and any comments to find out the solution of each different condition.