How can I convert a wks spreadsheet file to open in ms office / open office i can find text convertors but not for this!

This question i have already posted......but read below please

**************************
I have a client with a windows 95 computer and works Version 4 installed

They have a spreadsheet on the desktop will a whole years sales data on it,  usually by double-clicking it will open in spreadsheet using works 4.

However, when it is double clicked the computer starts to load works 4 then asks;

do you want to open this document using
1) wordprocessor
2) spreadsheet
3) database

so they select spreadsheet

then it says which format do you want to open using;

1) DOS
2) Windows

they select Windows format

the file then loads but presents loads of rubbish ..... computer type language..

now the only thing I can think is, was there a power failure while this file was open or a system crash.  Or has the file extension changed.

Finally,  can you install Office 97 on a win 95 pc or could I transfer this file to my up to date pc and try opening it eg using win 2000 or xp?

my knowledge doesnt really take me back this far so can anyone help me please?

thanks

Mat
*******************************

I probably have come to the conclusion that the file is corrupt BUT

I have come across TEXT convertors on MS website etc and seen more evidence opf ths on google, however, I need to try and locate the convertor to this WKS spreadsheet file to a readable format on open office or MS office.  Someone has told me he was has in the past had a few works / MS spreadsheets corrupt on him in the past but was able to open it using star/open office

cheers

Mat