Herewith, a list of tickets related to encoding problems.  Think of it as a "poor man's FAQ" about character encodings and Fossil.  Reading these may help answer some questions before you have to ask them...
<blockquote>
<table>
<tr>
<td>[f6bfac26484c826b8fdd33f9d93149a7279986da]</td>
<td>Incorrent handling of unicode encoded files (fossil on win XP).</td>
</tr>
<tr>
<td>[ba7e79b248640ce30507e89537d203a2d9125214]</td>
<td>problem showing diff view with several files, each in different encoding.</td>
</tr>
<tr>
<td>[0a0f00d434794670fbe9d78894c7c963d5380caa]</td>
<td>Wiki edit textarea display and Wiki name does not support non-ASCII word</td>
</tr>
<tr>
<td>[838bde7990d8e190957cbfe7f15c77322dc54e57]</td>
<td>file extracted from Fossil zip archive could have different name</td>
</tr>
<tr>
<td>[3984e3768ddbf470e62e6af98715a33abad17b49]</td>
<td>Support for non-UTF encodings</td>
</tr>
<tr>
<td>[cc6557cfc5763fa80bb04eecea7f713b0751efc4]</td>
<td>Unicode support</td>
</tr>
<tr>
<td>[eed6d07c6eb373e6c92d01958a05644184dd6c02]</td>
<td>Non-ASCII characters not allowed in wiki page titles</td>
</tr>
</table>
</blockquote>