Problem when I read a excel file "Unable to read entire block"

[Raymond Cheng]

I find a problem about reading excel file content.

I have a excel file and I want to get its content by using POI.
>From the following error description, I find that the excel content may 
have some problem.

Is any method for me to get more detail about this problem?
As a user point of view, I cannot know where is the block of data that 
cannot be read.
It is more meaningful if the error can be described in terms of worksheet 
or cell location.


fis = new FileInputStream(input);
fs = new POIFSFileSystem(fis); <-- error is found here
wb = new HSSFWorkbook(fs);



java.io.IOException: Unable to read entire block; 72 bytes read; expected 
512 bytes
        at org.apache.poi.poifs.storage.RawDataBlock.<init>(
RawDataBlock.java:62)
        at org.apache.poi.poifs.storage.RawDataBlockList.<init>(
RawDataBlockList.java:51)
        at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(
POIFSFileSystem.java:86)