XML Schema generation

[Sandy]

I need some help from the forum for designing the xml schema. The
scenario is client service architecture.
I have some configuration files(our own proprietary format, can be
considered as some form of text file) at server.
user can populate the required fields.
Since we are moving from text file format to xml file to store the
date. we have to convert all these configuration files to
XML files manually. or we can retain the same configuration file but
we should create mechanism so that these
files are converted to XML. Is there any way create to create a
Generalized schema so that it could accomodate
all the scenarios described below.Now i need to create a generalized
schema to accomodate multiple configuration files.
I am attaching some configuration files for the reference.
********************* File 1******************

configr-format-name: xyz
configr-format-type: IEEE
configr-description: "abc"

#Field Name Size Type Match
Value
#---------- ---- ----
-----------

"Destination Address" 6
STRING
"Source Address" 6
STRING
"Ether Type" 2 STRING INTVAL
A-N
"Version + IHL" 1
-
"Type of Service" 1
-
"Total Length" 2
-
"Identification" 2
-
"Flags + Fragment Off" 2
-
"Time to Live" 1
-
"Protocol" 1
STRING
"Header Checksum" 2
-
"Source Address" 4
STRING
"Destination Address" 4 STRINGSTRING
*********************** File 2 ********************

fconfigr-format-name: xyz1
configr-format-type: IEEE
configr-description: "abcd"

#Field Name Size Type Match
Value
#---------- ---- ----
-----------

"Destination Address" 6 STRING
"Source Address" 6 STRING
"Ether Type" 2 STRING INTVAL A-N
"Version + IHL" 1 -
"Type of Service" 1 -
"Total Length" 2 -
"Identification" 2 -
"Flags + Fragment Off" 2 -
"Time to Live" 1 -
"Protocol" 1 STRING INTVAL A-N
"Header Checksum" 2 -
"Source Address" 4 STRING
"Destination Address" 4 STRING
"Source Port" 2 STRING
"Destination Port" 2 STRING INTVAL A-N
"Sequence Number" 4 -
"Acknowledgement Number" 4 -
"Offset & Reserved" 1 -
"Window Control Bits" 1 -
"Window" 2 -
"Checksum" 2 -
"Urgent Pointer" 2 -
"Options" 1 -
*********************** File 3 ********************
fconfigr-format-name: xyz1
configr-format-type: IEEE
configr-description: "abcd"

#Field Name Size Type Match
Value
#---------- ---- ---- -----------
"Source SAP" 1 -
"Destination SAP" 1 -
"Control" 1 -

*********************** File 4 ********************
fconfigr-format-name: xyz1
configr-format-type: IEEE
configr-description: "abcd"