There was a download of xcell 1.0 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following version: 1.0 is the most frequently downloaded one by the program users. The program's installer file is generally known as XCELL.EXE. The program is included in Games. We recommend checking the downloaded files with any free antivirus. This free tool was originally produced by Ihsan.
From the developer:
Xcell puzzle is a grid (4x4 to 10x10) with numbers given at the intersection of cells. You are required to fill each cell with a slash, like / or \, such the count of slashes pointing towards an intersection must be same as the number given at the intersection, an intersection with a * (a star) must have exactly four slashes, pointed towards or away from the star, an intersection with no number can have slashes in any direction.
You may want to check out more software, such as XCell Compiler, which might be related to xcell.