```
$> file 'Broken Datasheet.xlsx'
Broken Datasheet.xlsx: Zip archive data, at least v2.0 to extract, compression method=deflate
```
Zip archive data
```
$> unzip 'Broken Datasheet.xlsx'
replace Broken Datasheet.xlsx? [y]es, [n]o, [A]ll, [N]one, [r]ename: y
```
Extracts a new file also nammed 'Broken Datasheet.xlsx'
```
$> file 'Broken Datasheet.xlsx'
Broken Datasheet.xlsx: Microsoft Excel 2007+
```
Microsoft Excel 2007
```
$> unzip 'Broken Datasheet.xlsx'
$> grep -R KCTF
xl/sharedStrings.xml:<sst xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" count="4" uniqueCount="4"><si><t xml:space="preserve"> . </t></si><si><t xml:space="preserve"> </t></si><si><t>KCTF{XLSX_Fil3$_4R3_Actually_0n3_Kind_0f_Zip_Fil3}</t></si><si><t xml:space="preserve"> </t></si></sst>
```