How do I trim the leading zeroes, and (+,-) in the currency field ?

I have a text file.
Your bill of +00002780.96 for a/c no. 25287324 is due on 11-06.
Your bill of +00422270.48 for a/c no. 28931373 is due on 11-06.

I want the O/P file to be like.
Your bill of 2780.96 for a/c no. 25287324 is due on 11-06.
Your bill of 422270.48 for a/c no. 28931373 is due on 11-06.

One of the possible ways I cud think was to write a small function to read char by char and remove the leading zeroes. Is there any other quicker and effcient way ?

Any suggestions ?

Thanks.